On February 12, 2010, the U.S. Missile Defense Agency (MDA) used the Airborne Laser Test Bed (ALTB) mounted on a Boeing B-747 jumbo jet to shoot down a liquid-propellant and a solid-propellant target missile. The ALTB project is one of the MDA's most ambitious and long-term programs. Washington launched its initial research in this sphere in the 1970s. At that time, an NKC-135-ALL aircraft, a modified version of the KC-135 Stratotanker, was built and used as an airborne laboratory. United Technologies built a 10-ton, 04-0.5-MWt CO2 laser system for the program. The NKC-135-ALL was involved in a series of tests...