 There was obviously a gap in a security protocol somewhere. Arkansas Republican Congressman Steve Womack, who supports the probe, being carried out by the House Oversight Committee. Officials from the Secret Service are scheduled to hold a closed-door briefing with the panel ahead of testimony next week from the agency's director, Kimberly Cheadle. While Womack says it's clear there was a security breakdown... Personally, I'm not willing to throw the Secret Service under the bus...