A defense budget bill amendment that would evaluate and beef up Marine Security Guard presence at U.S. embassies is just one of the measures Congress may propose in coming weeks as lawmakers react to security errors and failures that led to the deadly Benghazi attacks Sept. 11, 2012.

Despite emphasis on trimming the defense budget, the Republican-sponsored embassy security amendment was adopted with an easy majority on Wednesday. And similar measures focusing on the response of the State Department and the Pentagon to the violent attacks may be on the way.

As senators on the Homeland Security and Governmental Affairs Committee emerged from yet another lengthy classified briefing on Benghazi Thursday afternoon, their emphasis was on the seven-hour gap between the initial attack and a following assault that left two former Navy SEALs dead.