Angry Stalker Mob

PHOENIX (AP) - About a dozen people carrying guns, including one with a military-style rifle, milled among protesters outside the convention center where President Barack Obama was giving a speech Monday—the latest incidents in which protesters have openly displayed firearms near the president.

Gun-rights advocates say they're exercising their constitutional right to bear arms and protest, while those who argue for more gun control say it could be a disaster waiting to happen.

Phoenix police said the gun-toters at Monday's event, including the man carrying an AR-15 semi-automatic rifle slung over his shoulder, didn't need permits. No crimes were committed, and no one was arrested.

The man with the rifle declined to be identified but told The Arizona Republic that he was carrying the assault weapon because he could. "In Arizona, I still have some freedoms," he said.

Phoenix police Detective J. Oliver, who was monitoring the man at the downtown protest, said police also wanted to make sure no one decided to harm him.

"Just by his presence and people seeing the rifle and people knowing the president was in town, it sparked a lot of emotions," Oliver said. "We were keeping peace on both ends."