At least 18 people have been killed in Kiev as the Ukrainian capital plunges back into chaos. Rioters have attacked police, seized buildings, torched vehicles, and burned tires. Seven policemen are among the dead, all of whom died from gunshot wounds. At least 11 protesters died in the riots, according to local officials. “As of 11 pm local time 221 people have sought medical attention, 114 of them...