I'm not the most cruel and heartless person when it comes to illegal immigration, but I definitely draw the line at the recruiting station and its MEPS Background check. When I joined and every other American citizen who went before me, a background check was done looking for any outstanding legal or civil actions against you, any warrants or unpaid fines, bankruptcies, and even things like restraining orders. Any of these could be hidden if the person has been living under the radar, not even having a legal social security number.