Iit is the first day of "the Nation's Gun Show" in Virginia, a vast bazaar of weapons held each year just a half-hour's drive from Capitol Hill. Inside the cavernous Dulles Expo Centre, the size of two football fields, there are enough guns and knives to equip a small army. Signs at the doorways remind visitors and vendors to make sure all firearms are unloaded before entering. Inside, a couple of thousand men, many sporting military haircuts or baseball caps... (GunPolicy.org)