TABLE F-5 Prohibited Items Intercepted at Airport Screening Checkpoints: 2002–2005,,,,,,,,,,, ,2002,2003,2004,2005,,,,,,, Total prohibited items,"3,775,345","6,114,612","7,089,599","15,909,141",,,,,,, Firearms,927,683,650,"2,217",,,,,,, Knives,"1,036,697","1,961,849","2,058,652","1,822,888",,,,,,, Box cutters,"32,788","20,991","22,350","21,319",,,,,,, Other cutting instruments,"1,846,207","2,973,413","3,567,731","3,276,941",,,,,,, Clubs,"11,131","25,139","28,813","20,531",,,,,,, Incendiaries,"79,341","494,123","693,649","407,086",,,,,,, Other,"768,254","638,414","717,754","10,358,159",,,,,,, NOTES: 2002 data are April through December.,,,,,,,,,,, The large increase in 2005 was primarily due to the prohibition of lighters on board beginning in April 2005,,,,,,,,,,, "SOURCE: U.S. Department of Homeland Security, Transportation Security Administration, Office of Transportation Security Policy, personal communication, August 2007.",,,,,,,,,,,