(Reuters) - Three activists protesting economic inequality were struck by a car and mildly injured late on Friday night as they attempted to block traffic near a gathering of conservatives in the nation's capital, police said on Saturday. The protesters, who were transported to area hospitals with no signs of visible injury, were cited for obstructing traffic late on Friday night, said Araz Alali, a spokesman for the Metropolitan Police Department. "The driver saw he had the green light and the protesters then basically jumped in front of the vehicle to block traffic," Alali said. "It appears that the protesters...