A test of sorts

Arizona has come under fire because of the new law that does nothing but give state authorities the same power to enforce Federal law that Federal authorities have. The Second Amendment has come under fire from certain people who claim that it only applies to the militia. I say we perform a test. The Governors of the southern tier of states should activate the National Guard and deploy them along the border with orders to repel the armed invaders from the south. How can people be opposed to repelling an invasion?