> Ceramic, glass and plastic knives can be extremely dangerous Yes, but not more so on aircraft. Passengers (who tend to not want to die in a suicide hijacking

> Ceramic, glass and plastic knives can be extremely dangerous Yes, but not more so on aircraft. Passengers (who tend to not want to die in a suicide hijacking) will fight for their lives against hijackers who use knives. Sometimes the attempted hijackers die from the injuries sustained by the passengers fighting back: https://en.wikipedia.org/wiki/Tianjin_Airlines_Flight_7554 https://en.wikipedia.org/wiki/Tianjin_Airlines_Flight_7554 I really don't worry about knives on airplanes, what's scary is energetic materials (explosives or gunpowder) or someone tampering with electrical/avionics equipment.