The Dept. of Homeland Security is funding the installation of a number of anti-missile defense systems on commercial jets flying in and out of JFK Airport. The tests are the third stage of testing of a system that is already used by military aircraft. The defense system consists of equipment affixed to the bottom of the aircraft that electronically jams the heat-seeking component of shoulder filed missiles. The latter are referred to as man portable air defense systems, or MANPADs. The current test of the anti-MANPAD systems on jets is to see how the equipment holds up on the real world operating conditions of a commercial jet. more ›