| 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | |
|---|---|---|---|---|---|---|
| Total prohibited items | 3,775,345 | 6,114,612 | 7,089,599 | 15,887,596 | 13,711,759 | 6,516,022 |
| Firearms | 927 | 683 | 650 | 2,217 | 2,075 | 1,416 |
| Knives | 1,036,697 | 1,961,849 | 2,058,652 | 1,822,752 | 1,607,125 | 1,056,687 |
| Box cutters | 32,788 | 20,991 | 22,350 | 21,315 | 15,999 | 11,908 |
| Other cutting instruments | 1,846,207 | 2,973,413 | 3,567,731 | 3,276,691 | 163,419 | 101,387 |
| Clubs and bats | 11,131 | 25,139 | 28,813 | 20,531 | 12,296 | 9,443 |
| Incendiaries | 79,341 | 494,123 | 693,649 | 398,830 | 113,700 | 89,623 |
| Other | 768,254 | 638,414 | 717,754 | 10,345,260 | 11,797,145 | 5,245,558 |
NOTES: 2002 data are April through December.
The large increase in 2005 and decrease in 2007 was primarily due to the prohibition of lighters on board from April 2005 to August 2007. Fluctuations in counts can be attributed to changes in definitions and regulations governing prohibited items.
SOURCE: U.S. Department of Homeland Security, Transportation Security Administration, Office of Transportation Security Policy, personal communication as of October 2008.