We already have gotten all we can from them we have lasers/lazers, computers atomic bombs and atomic energy. The space war/race stops now!
WE HAVE EVERYTHING WE WANT FROM THEM! Do not shoot at them I know its hard your a soldier and your orders are to shoot down any UFO you see. Your a captain or commander your manning a high powered laser cannon if you aim it and bring down the craft and possibly kill the beings inside do follow commands or do you let them escape?

Cheeky alien rich kids; somebody's gotta teach 'em for tooling around in their shiny new UFOs their parents no doubt bought for 'em, buzzin' around, abducting the dregs of society and performing horrible noninvasive experimental surgery, abducting and mutilating cattle, and what have you.

Yep, somebody has to put 'em in their place, and if it isn't guys with laser cannons, then I don't know who.