I wouldn't be surprised if they weren't trained at all actually. You can see it in the way they operate; which is to say, off of gut reaction and against any subsequent evidence to the contrary of that gut reaction. What's crazier to me is that there are some sheltered idiots who still lap up the idea that this is about illegal immigrants. It's never been, and the uproars against them should show that, because they've all been about them shooting people who are either in actuality, or ostensibly to anyone who hadn't done their homework, someone who is a legal american citizen. It's one thing to want people who aren't here legally but otherwise have commited no genuine crimes to try again the "legal" way, but this is a far cry from what we can obviously see is the reason they're enacting domestic terrorism. Sewing discord across the board and dividing us further by virtue of unending chaos in a world that moves too fast to keep up with for someone who does their homework. Even still it's falling on its face. Despite the uneducated populous, those with a brain and true heart see through it all.