They do not do extensive background checks on joe Q recruit—the fellow could have “become” involved after he was in the military...
It is kinda like gays...they have always been in the military, they just didnt advertise (until recently!)..
Trust me, I do not WANT it to be thus...but reality is, that there ARE bad apples in the military,of a variety of “hate groups”
Thing is I would think they would have police records that should be easy to check
Like I said they must be hurting for decent recruits which is not a good thing