A dozen people with automatic weapons — two carrying assault rifles — showed up outside a pro-health care reform rally next to the Veterans of Foreign Wars convention in Arizona where President Obama was speaking, according to the Huffington Post.

HuffPo just posted this video of a man carrying weapons legally outside the event. The man, who is black, said “Because I can do it,” when asked why he was armed. He had a pistol on his hip, and an AR-15 (a semi-automatic assault rifle) on a strap over his shoulder. Two police officers stuck real close to him.

The Arizona Republic has more details.