|Total prohibited items||3,775,345||6,114,612||7,089,599||15,909,141|
|Other cutting instruments||1,846,207||2,973,413||3,567,731||3,276,941|
NOTES: 2002 data are April through December. Other cutting instruments includes scissors, hatchets, swords, sabers, meat cleavers, ice axes, and picks. Knives includes any length and type except round-bladed, butter, and plastic cutlery. Clubs includes martial arts items, baseball bats, night sticks, hammers, pool cues, and billy clubs. Firearms includes any weapon (including a starter gun) that is designed to or may readily be converted to expel a projectile by the action of an explosive, as well as spear guns, BB guns, flare pistols, compressed air guns, and stunning devices. Other refers to tools, self-defense items, compressed gas cylinders, bleach, and certain sporting goods. The jump in number of other prohibited items in 2005 is a result of the inclusion of lighters as prohibited items as of April 14, 2005.
SOURCE: U.S. Department of Homeland Security, Transportation Security Administration, Office of Transportation Security Policy, personal communication, November 2006.