Arrest them; chip them; deport them. If they are caught in our country a second time; life in prison.
Not good, MS-13 is not your typical garbage gang, they are already a growing presence in prisons.
If we deport them, do it somewhere as far the hell away from where ever it is they came from (chile? africa?), if they come back, execute them, or put them in supermax.
Life in prison hurts us more then it hurts them, they got to jail, get bigger, stronger, and more dangerious.
Just shoot them on the battlefield...
Re your post #3, I really like that. Seems workable.
"If they are caught in our country a second time..." execute them.
there, fixed it!