As many as 1,000 protesters marched through the Loop Saturday night as they protested NATO, taunted police and blocked traffic on normally busy streets.

“Basically we want to disrupt business as usual on all fronts,” said one woman who was marching, while dressed in black and refused to identify herself.

They were met by large contingents of police officers, some in riot gear, and others on bikes, who generally let the demonstrators remain in the streets. . .