During testimony on Capitol Hill on Thursday, some of the nation's top defense officials told a Senate committee that very little was heard from the president and the secretary of state on the night of September 11, 2012 - the night

that four Americans, including Ambassador Chris Stevens, were killed in a terrorist attack in Benghazi, Libya.

Marjorie Clifton, a former Obama campaign advisor, defended the administration's response, saying that what these hearings "are designed to do" is understand where the breakdown was and make modifications so that it doesn't happen again in the future ... not 'point fingers.'

Lars Larson, a conservative radio talk show host, disagreed, however. So did moderator Martha MacCallum.

Clifton asserted that to expect that we're 'going to be able to have the kind of response we needed' would be nearly impossible. MacCallum fired back, saying, "I'm just a mere mortal, but 14 to 15 hours is not enough time to get the U.S. military on the ground?"

Larson chimed in in agreement, saying that "it's not about blaming one person; it's saying there was a colossal failure on all levels."

Watch the full debate: