American Officials See Link Between Limits, Spate of Attacks By Ernesto Londoño and Karen DeYoung Washington Post Foreign Service Saturday, July 18, 2009 BAGHDAD, July 17 -- The Iraqi government has moved to sharply restrict the movement and activities of U.S. forces in a new reading of a six-month-old U.S.-Iraqi security agreement that has startled American commanders and raised concerns about the safety of their troops.