 Capitol Hill correspondent Mitchell Miller today on the Hill Tuesday morning. 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. Well, Womack says it's clear there was a security breakdown. Personally, I'm not willing to throw the Secret Service under the bus.