In the 50 years since Hughes Research Lab demonstrated the first laser, those concentrated light beams have been adaptedtoread DVDs, perform eye surgery, and point at things. ButwhiletheUSmilitary has sunk billions into developing directed-energy weapons, it has reaped only disappointment. Sure, lasers powerful enough to destroy missiles and planes have existed since the 1970s, butthey haveyetto be broughtsuccessfully to the battlefield, andtheysureashell aren't going to fit in a thigh holster.
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