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'''ToneScript''' is a mini script used to describe the characteristics of [[Call-progress tone|Call progress tones]]
Administrator John S. Pistole believes this is part of an over all risk-based security approach, which permits TSA officers to better focus their efforts on finding larger threat gadgets corresponding to explosives. I am glad that they are going to have more time to ensure I take my shoes off and throw away that bottle of water That I just purchased for $3.00. I'm also glad that I still can only have 3oz. Of shampoo, conditioner & lotions in a plastic bag. God solely knows what would occur if I had extra in my keep it up and what could occur if I combined them together.<br><br>The Delica4′s deal with is product of Spyderco’s traditional Bi-Directional Texturing that is featured on a number of their knives. The texturing gives you grip in a really snug and ergonomic manner. The deal with has metal liners that adds a feeling of stability to the knife whenever you use it. The handle also has a pivot screw that lets [http://www.thebestpocketknifereviews.com/spyderco-delica-4-review/ spyderco delica 4 assembly] you alter the screw if the blade turns into free. A number of months later my dad gave me certainly one of his previous knives, compensation for serving to him scrape some chairs—with the knife—prior to painting. I kept that knife for years however lost it someday after I went off to college.<br><br>The flight attendants' union collected signatures from one hundred forty members of Congress who oppose lifting the knife ban. Union [http://sss.chaoslab.ru/tracker/mim_plugs/newticket?reporter=anonymous&summary=AttributeError%3A+%27Environment%27+object+has+no+attribute+%27get_db_cnx%27&description=Lots+of+say+that+one+of+the+greatest+pocket+knives+on+the+market+place+now+appears+to+be+the+Spyderco+Delica+%2C+according+to+specialists+and+customers+of+pocket+knives.+It+is+rated+prime+of+the+line+since+of+its+several+utilizes+and+%5Bhttp%3A%2F%2FAnswers.Yahoo.com%2Fsearch%2Fsearch_result%3Fp%3Dwonderful%2Bskills%26submit-go%3DSearch%2BY%21%2BAnswers+wonderful+skills%5D.+Since+pocket+knives+have+been+used+for+hundreds+of+years+by+farmers%2C+cooks%2C+hunters+and+seafaring+men+and+women+as+a+tool%2C+it+stands+to+reason+they+have+to+have+and+want+the+extremely+best.+There+are+several+factors+to+decide+on+the+Spyderco+Delica+pocket+knife.%0D%0A%0D%0A%0D%0A%0D%0AWelcome+to+The+Nutnfancy+Project+or+TNP.+I+am+an+INDEPENDENT+reviewer+of+%22hazardous+issues%22+like+knives%2C+guns%2C+tac+gear%2C+and+other+stuff+I+dig.+I+also+critique+a+assortment+of+outside+equipment.+My+focus+is+on+higher+high+quality+stuff+that+I+like%2C+that+lasts%2C+and+delivers+exceptional+service+for+the+price+tag+paid.+onal+videos+that+go+over+these+POUs+with+the+gear.+If+you+already+own+a+Delica+or+Endura%2C+you+have+a+single+of+the+finest+selling+knives+Spyderco+tends+to+make.+The+knife+you+have+just+acquired+is+a+bit+different+from+the+regular+C10+Endura4+and+C11+Delica4+Lightweights.+They+are+now+out+there+in+a+variety+of+new+manage+colors+with+full-flat+ground+blades.+Their+FRN+%28fiberglass+reinforced+nylon%29+handles+come+in+new+vibrant+tones+such+as+blue%2C+green%2C+brown%2C+g%0D%0A%0D%0AThe+blade+on+the+Delica+four+is+truly+cool+searching+with+it%27s+black+coating%2C+and+created+from+VG-10+stainless+steel+and+comes+razor+sharp+ideal+out+of+the+box.+This+model+also+utilizes+Spyderco%27s+patented+Spyder+Edge+combined+with+a+conventional+straight+edge+%2C+which+offers+you+two+various+possibilities+when+you+will+need+to+slice+a+thing.++If+you+loved+this+article+and+you+would+like+to+obtain+additional+facts+concerning+%5Bhttp%3A%2F%2Fwww.thebestpocketknifereviews.com%2Fspyderco-delica-4-review%2F+Spyderco+Delica+4+Combo%5D+kindly+browse+through+our+web+site.+As+for+the+clip%2C+the+Delica+four+comes+with+a+4+way+clip+that+can+be+positioned+tip+up%2C+tip+down%2C+left%2C+or+proper%2C+based+on+your+personal+carrying+wants+and+whether+or+not+you+are+left+handed+or+suitable+handed.+A+couple+of+persons+have+reported+that+the+clip+is+wearing+out+their+pocket%2C+but+what+clip+would+not%3F+The+Pros+If+you+are+taking+into+consideration+to+buy+greatest+price+tag.+you+must+check+out+for+Spyderco+Delica4+Titanium+Damascus+PlainEdge+C11TIPD%0D%0A%0D%0AThe+style+of+the+Delica+is+of+course+extra+catered+to+function+over+kind.+The+Delica+has+a+very+good+sized+leaf+blade+with+a+enormous+handle+in+comparison.+The+blade+to+deal+with+ratio+is+.67+which+is+not+too+great%2C+having+said+that+it+is+tough+to+knock+a+Spyderco+for+blade+to+deal+with+ratio.+Simply+because+of+their+styles+most+if+not+all+Spyderco%27s+have+a+smaller+sized+blade+and+a+huge+handle.+This+leads+to+awesome+ergonomics+and+controllable+%28extra+on+that+later%29.+However%2C+one+particular+could+not+aid+but+consider+Spyderco+could+have+fit+a+bit+extra+blade+into+the+handle+in+this+case.+There+is+a+bit+of+space+left+more+than.%0D%0A%0D%0AI+just+about+left+this+section+out%2C+as+it+appears+so+clear+that+the+Delica+is+created+for+each+and+every+day+carry+%28EDC%29.+So+yeah%2C+EDC+all+the+way.+The+Delica+makes+use+of+a+back+lock+situated+correct+in+the+middle+of+the+deal+with.+This+is+easy+to+access+but+it+will+take+some+technique+to+close+this+knife+with+one+hand.+The+lock+is+quite+secure+with+no+blade+play+at+all.+The+spring+on+the+back+lock+is+incredibly+excellent+so+inadvertently+opening+the+knife+is+highly+unlikely.+The+Boyd+dent+on+the+%5Bhttps%3A%2F%2Fwww.gov.uk%2Fsearch%3Fq%3Dlock%2Bbar+lock+bar%5D+aids+make+sure+that+the+knife+will+not+inadvertently+close+either.+The+regular+Spyderco+spoon-style+clip%2C+4+way+positionable.+It+functions+very%2C+extremely+nicely.+Huge+hands+may+well+find+the+Delica+frame+a+bit+cramped+due+to+the+characteristics+that+make+it+so+easy+to+carry.+Genuine+Spyderco+Sticker%29+%249.95%0D%0A%0D%0AThe+Spyderco+Delica+4%C2%A0quintessentially+captures+Spyderco%27s+style+and+functionality+mindset+when+crafting+a+performance+cutting+tool.+It+is+a+vicious+slicer+and+does+not+even+remotely+try+pretending+to+be+a+folding+pry+bar.+I+by+no+means+thought+an+FRN+mid-lock+knife+would+grow+to+be+my+most+carried+folder%2C+but+as+of+currently%2C+I+consistently+carry+either+of+my+Delicas+%28I+also+have+the+super+blue+edition+along+with+this+ZDP-189+edition%29+extra+usually+than+any+of+my+other+knives.+I+do+not+say+this+lightly.%0D%0A%0D%0AHere+is+the+Delica+product+web+page.+Right+here+is+a+excellent+street+cost+on+the+Delica.+Right+here+is+Nutnfancy%27s+critique.+Here+is+his+evaluation+of+the+full+flat+grind+version.+Right+here+is+Here+is+the+Amazon+evaluations+web+page%2C+with+an+average+score+of+4.9+stars.+Right+here+is+a+decent+written+overview.+There+are+literally+dozens+of+variations%2C+from+stainless+steel+handles+to+ZDP-189+steel+to+a+high+end+anniversary+edition+in+blue+and+orange.+They+are+all+listed+in+the+history+hyperlink+quoted+above.%0D%0A%0D%0AThis+is+a+clearly+a+pocket+knife+developed+for+enthusiasts+who+can+appreciate+anything+that+went+into+it%2C+and+a+lot+went+into+it.+I+believe+their+two+primary+design+and+style+targets+had+been+1%29+ergonomics+andfunctionality.+As+far+as+the+ergonomics+goes%2C+this+knife+fits+my+hand+perfectly.+If+you+have+seriously+significant+hands%2C+the+ergonomics+on+the+I+utilized+to+take+the+clips+off+all+my+knives%2C+just+ideal+out+of+the+box.+But+the+bigger+knives+are+so+a+great+deal+more+comfortable+to+carry+with+a+deep+carry+clip%2C+so+for+the+Delica+it+by+no+means+came+off.+Following+six+months+of+really+hard+use%2C+the+clip+nevertheless+has+a+good+tension+on+it.+As+shown+in+the+picture+at+left%2C+the+anodizing+on+the+clip+has+held+up+effectively.+209.95+BEAD3LY+Spyderco+Round+Rhodium+and+18K+Gold+Bead+with+Two-Toned+Woven+Lanyard%0D%0A%0D%0AOf+course%2C+nearly+20+years+later%2C+the+tactical+folder+marketplace+is+now+crowded+with+a+lot+of+great+knives.+On+the+other+hand%2C+Spyderco+has+remained+on+the+major+edge+by+quickly+adopting+custom+knife+components+into+its+production+knives.+The+enterprise+had+aluminum+handles+in+the+late-1980s%2C+titanium+handles+in+the+early-1900s%2C+and+carbon+fiber+in+the+late-1990s.+In+terms+of+each+lock+strength+and+lock+reliability%2C+the+back+lock+design+is+superior+to+the+liner+lock+style.+These+two+Spyderco+tactical+folders+use+a+back+lock+design.+The+back+lock+knife+will+withstand+substantially+additional+blade+closure+force+%28each+impact+and+steady%29+than+a+liner+lock+knife.+Blade+picture+is+a+ComboEdge+Blade.+This+knife+is+also+available+in+SpyderEdge+and+PlainEdge.&create=Create representatives] say they imagine Pistole relented under strain from key members of Congress, together with Reps. Edward J. Markey (D-Mass) and Michael Grimm (R-N.Y.). The choice to maintain the ban in place additionally signifies that the TSA will proceed to ban passengers from carrying golf clubs, novelty baseball bats, hockey sticks and pool cues on planes. Pistole had considered lifting the ban on such sporting tools as properly. Related Press writers Eileen Sullivan in Washington, David Koenig in Dallas and Raquel Maria Dillon in Los Angeles contributed to this report.<br><br>The Rockwell scale is a measurement system used by industrial manufacturers to find out the relative hardness of objects based on the depth of indentation from a heavy object. In other words, they drop a heavy ball or diamond cone onto the steel and measure the size of indentation. For knives they use the “C” scale in items labeled “HRC.” Excessive carbon metal kitchen knives usually run from HRC 56-fifty eight. HRC sixty two is a very arduous knife. It could appear unusual for the TSA to chill out its guidelines concerning small knives, especially when it is laborious to imagine a concerted effort by lobbyists pushing to permit small blades on airplanes.<br><br>Within this article, we reviewed what it is best to search for in one of the best pocket knife as well as 10 nice knives on the market as we speak. Based upon your needs, the ordering would possibly or may not be accurate for you. Take our guidelines into consideration if you find yourself shopping for a knife. You probably [http://www.knife-depot.com/pocket-knives/ collector knives] have any recommendations, go away them within the comment field beneath. These good-looking folding pocket knives make great items for that particular sportsman or an accessory to have on hand always. Distinctive and sensible, these folding pocket knives are a must have for any sportsman. From collectible heirlooms to practical fundamentals, we have the proper folding knife.<br><br>In the United Kingdom it is illegal to hold a knife having a blade more than three inches (seventy six mm) in length in public with out "good motive". The terms "in public" and "good motive" will not be defined, however examples of "non secular responsibility", "nationwide dress" and "requirement of employment or pastime" are given. It is left up to a police officer's individual subjective discretion, and finally a magistrate to decide if a knife is being carried "in public", and for a "good purpose". The onus lies on the officer to show that intent.<br><br>Knives are one of the oldest and most helpful human tools. Our ancestors used sharp stones or [http://act.jinbo.net/forum2006/index.php/Spyderco_Delica_4_Flat_Ground wood items] to do what knives right now do. They were used to cut, prick and carve and stood as a logo of bravery. With the invention of steel, there was an evolution of essentially the most used human instrument, knife As civilization advanced, various kinds of metals used in making knives (through the Stone Age, Bronze Age, and Iron Age) emerged. They are typically nice for [http://Wiki.Crafta.com/wiki/index.php?title=Spyderco_Delica_4_Wave_Trainer slicing] boneless meats as a result of they are surely extra balanced and considerably much lighter than steel knives , causing them to be less complicated to handle.<br><br>I want the principles allowed four" blades (which would include most common pocket knives) and dull food-oriented blades, like butter knives and cheese knives. I assume those are nonetheless verboten since they've fixed handles. The whole knife ban seems silly. Ever since reinforcing the door to the cabin, knives have not been a danger to an airplane. Even large knives are really no riskier on an airplane than within the mall, or on the street, or at a restaurant. I understand that persons are nonetheless emotional and fearful of safety when flying, however they need to overcome this irrational concern.
 
==Description==
A call progress tone is a pattern of tones made audible to the caller, conveying some status about the call. Despite its name, a call-progress tone  could be a sequence of tones, that may be repeated or emitted just once. ToneScript is a mini script that describes the pattern of frequency, cadence and level of tones in call progress tones. Many [[internet telephony]] devices using more sophisticated operating systems permit users to customize the tones. Customarily the devices are preset with the standard tones defined and regulated by standards bodies in a given region. ToneScript is used in [[Sipura Technology|Sipura]], [[Linksys]] and [[Cisco Systems|Cisco]] family of [[IP telephony]] products.
 
==Format==
*ToneScript may have at most 120 characters.
*A calling tone may use up to 6 frequency components <math>n_k</math> where <math>1 < k < 6 </math>
*A cadence section <math>Z_i</math> is indicated its Duration <math>D_i</math> followed by up to 6 subsections <math>ZZ_{i,j}</math> in parenthesis. A subsection consists of an ON duration (* for always on), an OFF duration and the list of frequency components <math>f_{i,j}</math> used in that subsection.
:<math>f_{i,j} := n_1[+n_2[+n_3[+n_4[+n_5[+n_6]]]]]</math>
:<math>ZZ_{i,j} := on_{i,j}/off_{i,j}/f_{i,j} </math>
:<math>Z_i := D_i([ZZ_{i,1} [,ZZ_{i,2} [,ZZ_{i,3} [,ZZ_{i,4} [,ZZ_{i,5} [,ZZ_{i,6}]]]]])</math>
*A FreqScript is a sequence of frequencies <math>F_i</math> in [[hertz]] and their corresponding levels <math>L_i</math> in [[dBm]]
:<math>FreqScript:=F_1</math>@<math>L_1[,F_2</math>@<math>L_2]</math>
*A Tone Script has a frequency specification and one or two cadence sections.
:<math>ToneScript:=FreqScript;Z_1[;Z_2]</math>
 
==Examples==
# 350@-19,440@-19;10(*/0/1+2)
#: Contains 2 frequencies components
#:: Frequency component 1 is 350&nbsp;Hz at -19 dBm
#:: Frequency component 2 is 440&nbsp;Hz at -19 dBm
#: There is 1 Cadence Section
#:: In this section, The duration is 10 seconds and the tone has only 1 subsections
#::: In the only subsection the tone is always on, off for 0 seconds, and composed of both the Frequency components 1 and 2 (350&nbsp;Hz and 440&nbsp;Hz)
# 350@-19,440@-19;2(.2/.2/1+2);10(*/0/1+2)
#: Contains 2 frequencies components
#:: Frequency component 1 is 350&nbsp;Hz at -19 dBm
#:: Frequency component 2 is 440&nbsp;Hz at -19 dBm
#: There are two Cadence Sections
#:: In the first Cadence Section, The duration is 2 seconds and the tone has only 1 subsections
#::: In the only subsection the tone is on for 0.2 seconds, off for 0.2 seconds, and composed of both the Frequency components 1 and 2 (350&nbsp;Hz and 440&nbsp;Hz)
#:: In the second Cadence Section, The duration is 10 seconds and again the tone has only 1 subsections
#::: In the only subsection the tone is always on, off for 0 seconds, and composed of both the Frequency components 1 and 2 (350&nbsp;Hz and 440&nbsp;Hz)
 
==North American tones==
{| class="wikitable sortable"
!No||Name||ToneScript
|-
|1
|[[Dial tone]]
|350@-19,440@-19;10(*/0/1+2)
|-
|2
|Second dial tone
|420@-19,520@-19;10(*/0/1+2)
|-
|3
|Outside dial tone
|420@-16;10(*/0/1)
|-
|4
|Prompt tone
|520@-19,620@-19;10(*/0/1+2)
|-
|5
|[[Busy tone]]
|480@-19,620@-19;10(.5/.5/1+2)
|-
|6
|Reorder tone
|480@-19,620@-19;10(.25/.25/1+2)
|-
|7
|[[Howler tone|Howler/off-hook warning]] tone
|480@-10,620@0;10(.125/.125/1+2)
|-
|8
|[[Ringback tone]]
|440@-19,480@-19;*(2/4/1+2)
|-
|9
|[[Comfort tone]]
|600@-16;1(.25/.25/1)
|-
|10
|[[Special information tone]] SIT1
|985@-16,1428@-16,1777@-16;20(.380/0/1,.380/0/2,.380/0/3,0/4/0)
|-
|11
|Special information tone SIT2
|914@-16,1371@-16,1777@-16;20(.274/0/1,.274/0/2,.380/0/3,0/4/0)
|-
|12
|Special information tone SIT3
|914@-16,1371@-16,1777@-16;20(.380/0/1,.380/0/2,.380/0/3,0/4/0)
|-
|13
|Special information tone SIT4
|985@-16,1371@-16,1777@-16;20(.380/0/1,.274/0/2,.380/0/3,0/4/0)
|-
|14
|MWI Dial Tone
|350@-19,440@-19;2(.1/.1/1+2);10(*/0/1+2)
|-
|15
|Call Forward Dial Tone
|350@-19,440@-19;2(.2/.2/1+2);10(*/0/1+2)
|-
|16
|[[Hold (telephone)|hold]]ing tone
|600@-19;*(.1/.1/1,.1/.1/1,.1/9.5/1)
|-
|17
|[[Conference call]] Tone
|350@-19;20(.1/.1/1,.1/9.7/1)
|-
|18
|Call waiting tone
|440@-10;30(.3/9.7/1)
|}
 
==Australian tones==
{| class="wikitable sortable"
!No||Name||ToneScript
|-
|1
|[[Dial tone]]
|400@-19,425@-19,450@-19;10(*/0/1+2+3)
|-
|2
|Second dial tone
|420@-19,520@-19;10(*/0/1+2)
|-
|3
|Busy tone
|425@-19;10(.375/.375/1)
|-
|4
|Ringback tone
|400@-16,435@-17;*(.4/.2/1+2,.4/.2/1+2,2/0/0)
|}
 
==Ireland tones==
{| class="wikitable sortable"
!No||Name||ToneScript
|-
|1
|[[Dial tone]] ([[ETSI]] standard)
|425@-17;60(*/0/1)
|-
|2
|Second dial tone
|335@-19,425@-19;45(*/0/1+2)
|-
|3
|[[Busy tone]] ([[ETSI]] standard)
|425@-19; 30(0.5/0.5/1)
|-
|4
|Reorder tone ([[ETSI]] standard)
|425@-19; 30(.2/.2/1)
|-
|5
|[[Ringback tone]] (same as UK, NZ etc)
|400@-19,450@-19;*(.4/.2/1+2,.4/.2/1+2,2/0/0)
|-
|6
|[[Special information tone]] SIT ([[ETSI]] standard)
|950@-16,1400@-16,1800@-16;20(.330/0/1,.330/0/2,.330/0/3,0/1/0)
|-
|7
|MWI Dial Tone
|425@-19;2(.1/.1/1);58(*/0/1)
|-
|8
|Call Forward Dial Tone
|400@-16,432@-18;30(0.4/0/1,0.4/0/2)
|-
|9
|Call waiting tone
|425@-19;30(.3/9.7/1)
|-
|10
|Confirm tone / routing tone
|425@-19;1.5(0.06/0.06/1);
|-
|11
|Prompt tone
|335@-19,425@-19;20(*/0/1+2)
|}
 
([[ETSI]] standard) is indicated where tones are in compliance with European Telecommunications Standards Institute recommendations.
 
==References==
{{Empty section|date=January 2011}}
 
==External links==
1) https://supportforums.cisco.com/thread/2021701
 
{{DEFAULTSORT:Tonescript}}
[[Category:Telephony signals]]

Revision as of 12:55, 5 March 2014

Administrator John S. Pistole believes this is part of an over all risk-based security approach, which permits TSA officers to better focus their efforts on finding larger threat gadgets corresponding to explosives. I am glad that they are going to have more time to ensure I take my shoes off and throw away that bottle of water That I just purchased for $3.00. I'm also glad that I still can only have 3oz. Of shampoo, conditioner & lotions in a plastic bag. God solely knows what would occur if I had extra in my keep it up and what could occur if I combined them together.

The Delica4′s deal with is product of Spyderco’s traditional Bi-Directional Texturing that is featured on a number of their knives. The texturing gives you grip in a really snug and ergonomic manner. The deal with has metal liners that adds a feeling of stability to the knife whenever you use it. The handle also has a pivot screw that lets spyderco delica 4 assembly you alter the screw if the blade turns into free. A number of months later my dad gave me certainly one of his previous knives, compensation for serving to him scrape some chairs—with the knife—prior to painting. I kept that knife for years however lost it someday after I went off to college.

The flight attendants' union collected signatures from one hundred forty members of Congress who oppose lifting the knife ban. Union representatives say they imagine Pistole relented under strain from key members of Congress, together with Reps. Edward J. Markey (D-Mass) and Michael Grimm (R-N.Y.). The choice to maintain the ban in place additionally signifies that the TSA will proceed to ban passengers from carrying golf clubs, novelty baseball bats, hockey sticks and pool cues on planes. Pistole had considered lifting the ban on such sporting tools as properly. Related Press writers Eileen Sullivan in Washington, David Koenig in Dallas and Raquel Maria Dillon in Los Angeles contributed to this report.

The Rockwell scale is a measurement system used by industrial manufacturers to find out the relative hardness of objects based on the depth of indentation from a heavy object. In other words, they drop a heavy ball or diamond cone onto the steel and measure the size of indentation. For knives they use the “C” scale in items labeled “HRC.” Excessive carbon metal kitchen knives usually run from HRC 56-fifty eight. HRC sixty two is a very arduous knife. It could appear unusual for the TSA to chill out its guidelines concerning small knives, especially when it is laborious to imagine a concerted effort by lobbyists pushing to permit small blades on airplanes.

Within this article, we reviewed what it is best to search for in one of the best pocket knife as well as 10 nice knives on the market as we speak. Based upon your needs, the ordering would possibly or may not be accurate for you. Take our guidelines into consideration if you find yourself shopping for a knife. You probably collector knives have any recommendations, go away them within the comment field beneath. These good-looking folding pocket knives make great items for that particular sportsman or an accessory to have on hand always. Distinctive and sensible, these folding pocket knives are a must have for any sportsman. From collectible heirlooms to practical fundamentals, we have the proper folding knife.

In the United Kingdom it is illegal to hold a knife having a blade more than three inches (seventy six mm) in length in public with out "good motive". The terms "in public" and "good motive" will not be defined, however examples of "non secular responsibility", "nationwide dress" and "requirement of employment or pastime" are given. It is left up to a police officer's individual subjective discretion, and finally a magistrate to decide if a knife is being carried "in public", and for a "good purpose". The onus lies on the officer to show that intent.

Knives are one of the oldest and most helpful human tools. Our ancestors used sharp stones or wood items to do what knives right now do. They were used to cut, prick and carve and stood as a logo of bravery. With the invention of steel, there was an evolution of essentially the most used human instrument, knife As civilization advanced, various kinds of metals used in making knives (through the Stone Age, Bronze Age, and Iron Age) emerged. They are typically nice for slicing boneless meats as a result of they are surely extra balanced and considerably much lighter than steel knives , causing them to be less complicated to handle.

I want the principles allowed four" blades (which would include most common pocket knives) and dull food-oriented blades, like butter knives and cheese knives. I assume those are nonetheless verboten since they've fixed handles. The whole knife ban seems silly. Ever since reinforcing the door to the cabin, knives have not been a danger to an airplane. Even large knives are really no riskier on an airplane than within the mall, or on the street, or at a restaurant. I understand that persons are nonetheless emotional and fearful of safety when flying, however they need to overcome this irrational concern.