Marines launch new raid against Iraq insurgent

BAGHDAD (Reuters) - U.S. Marines said on Saturday they had launched a new counter-insurgency operation, the latest in a series of sweeps designed to root out militant bases in Iraq's Euphrates valley.Operation Scimitar involved about 500 U.S. troops and 100 Iraqis, making it about half the scale of Operation Sword and Operation Spear in the past three weeks.The military said the Marines had detained 22 suspected militants since the raid was launched in secret in the village of Zaidon 30 km (20 miles) southeast of Falluja on Thursday....