How do we control the gang members that come in the military?

I've seen that episode and honestly you can't. Not sure if there is a way to stop this. You control (or try to mold them properly) them while they're in, but the moment they get out....you can only hope for the best. Controlling those that come in is another problem all in itself. Not all come in with the intent of keeping that life alive, but even though they could be "free" of the life, their families are still in the areas that caused the situation in the first place, sucking the troop back. It's a vicious cycle.

The only thing I can think of is more intense screenings while at MEPS , most like to brag about their gang affiliations by tattoo's so just like in prison they take photos of tattoo's that identify a persons affiliation with gangs. I saw a documentary a few years ago how Ft. Hood had it really bad for gang affiliations .

To me the bigger question is with the president bringing in the so called refugees how many of them are hostile to the US but will join to learn tactics. To get the training that will then be used against us.