Exhibitors display products at the 8th annual Border Security Expo, Tuesday, March 18, 2014, in Phoenix. The two day event features panel discussions, sharing intelligence, and exhibitors displaying high-tech wares aimed at securing lucrative government contracts and private sales. (AP Photo/Matt York)
Barry Witt, of Heckler & Koch arms manufacturers, sets up a weapons display at the 8th annual Border Security Expo, Tuesday, March 18, 2014, in Phoenix. The two day event features panel discussions, sharing intelligence, and exhibitors displaying high-tech wares aimed at securing lucrative government contracts and private sales. (AP Photo/Matt York)
G Squared Consulting CEO Alex Solis demonstrates an electroshock weapon at the 8th annual Border Security Expo, Tuesday, March 18, 2014, in Phoenix. The two day event features panel discussions, sharing intelligence, and exhibitors displaying high-tech wares aimed at securing lucrative government contracts and private sales. G Squared Consulting creates clothing that is resistant to electroshock weapons. (AP Photo/Matt York)
Gary Wagner, of Elbit Systems of America, cleans the lens of a long range thermal imaging targeting system at the 8th annual Border Security Expo, Tuesday, March 18, 2014 in Phoenix. The two day event will feature panel discussions, sharing intelligence, and exhibitors displaying high-tech wares aimed at securing lucrative government contracts and private sales. (AP Photo/Matt York)
Patricio Canavati, of TPS Armoring stands between two vehicles that his company armored, one with over 1,800 bullet holes, and a newly armored SUV, at the 8th annual Border Security Expo, Tuesday, March 18, 2014 in Phoenix. The bullet riddled SUV saved the life of secretary of Public Security of the state of Michoacan, Mexico, Minerva Bautista Gomez in 2010. The two day event will feature panel discussions, sharing intelligence, and exhibitors displaying high-tech wares aimed at securing lucrative government contracts and private sales. (AP Photo/Matt York) (AP2014)
G Squared Consulting Partner Gregory Williams, right, uses an Electroshock weapon on CEO Alex Solis, who is protected by their specialized clothing that is resistant to Electroshock, at the 8th annual Border Security Expo, Tuesday, March 18, 2014 in Phoenix. The two day event will feature panel discussions, sharing intelligence, and exhibitors displaying high-tech wares aimed at securing lucrative government contracts and private sales. (AP Photo/Matt York)
Steven Roberson, of QinetiQ, demonstrates a unmanned robotic system at the 8th annual Border Security Expo, Tuesday, March 18, 2014, in Phoenix. The two day event features panel discussions, sharing intelligence, and exhibitors displaying high-tech wares aimed at securing lucrative government contracts and private sales. (AP Photo/Matt York) (AP2014)
Josh Krause, of Original SWAT, prepares tactical footwear for display at the 8th annual Border Security Expo, Tuesday, March 18, 2014 in Phoenix. The two day event features panel discussions, sharing intelligence, and exhibitors displaying high-tech wares aimed at securing lucrative government contracts and private sales. (AP Photo/Matt York)