May Day General Strike
California Highway Patrol officers take positions at the Golden Gate Bridge in anticipation of May Day demonstrations in San Francisco, California May 1, 2012. Authorities anticipated demonstrators would shut down the bridge, but agreement was reached to prevent that action. REUTERS/Robert Galbraith
WASHINGTON - Afghan forces asked for U.S. air support while fighting the Taliban in Kunduz shortly before an air strike resulted in the deaths of civilians there, the American commander of international forces in Afghanistan said on Monday.