OldNFO has a post up about the new AZ immigration law that allows their LEO's to help curb the problem. That law has also spawned a tidal wave of hate from the people that profit off of illegal aliens (DNC etc. I'm looking at you). Well OldNFO fielded the suggestion of using Reaper UAV's to patrol the border and take down any illegals seen with weapons, here's why it would work (look at the bottom of the page under 'Armament').
I can see the nose-art for it, a photo of Gandalf saying "You shall not pass!!" now that's border security I like.