Officials: Pentagon weighs protections for US-trained rebels

In this photo made from the footage taken from Russian Defense Ministry official web site on Thursday, Oct. 1, 2015 a bomb explosion is seen in Syria. Russia’s launch of airstrikes in Syria is prompting discussions within the Pentagon about whether the U.S. should use military force to protect U.S.-trained and equipped Syrian rebels if they come under fire by the Russians. (AP Photo/ Russian Defense Ministry Press Service)