Well Marty, some jerkoff in a uniform is probably gonna tell us what our mission is and then say somethin like "What yer doin is gonna protect mankind". Which is a crock a' shit, in my experience. At nobody tried to erase our memories...yet.
If you don't like killin, just stay behind someone who does, 'cause you don't grab a bunch a' folks from across the universe to pick daisies, kid.