What a horrible comment on America's "ingenuity." We have off-shored all our manufacturig and inventiveness to nations around the globe but for 1 industry - the killing machine defense industry. America still is King in that category. Sick.
Supposedly, it is launched upon the detection of incoming missile(s) and then launches its own projectiles to zap said missile(s).
YT commentary was all over the board, from 'I want one to zap Santa Claus if he doesn't do right this year,' to just about what you said its proper use should be.