The New York Times is reporting the U.S. military has begun secretly supplying arms, ammunition and cash to Sunni insurgent groups in Iraq in an effort to fight al-Qaeda. Some of the Sunni groups are suspected of having carried out deadly attacks on American troops and have strong ties to Saddam Hussein’s Baath party. Critics of the strategy say it could amount to the U.S. arming both sides in a civil war. The United States has already spent more than $15 billion in building up Iraq’s largely Shiite army and police force.