Police, Protesters Clash in Pittsburgh

World leaders arriving in Pittsburgh Thursday for the G-20 meeting received a raucous, and at times violent, welcome. Many self-identified anarchists filled the streets surrounding the convention center; police fired canisters of pepper spray, smoke, and rubber bullets to subdue people attempting to march; and there were reports of at least 17 arrests. "We were barely even protesting," said one Pittsburgh man. "Then all of a sudden, they come up and tell us we're gathered illegally and start using force, start banging their shields, start telling us we're going to be arrested and tear gassed... We haven't broken any laws."