Purging System News Today

>> sir i cant answer that either. >> joining me now from capitol hill nbc news correspondent kelly odonnell. theres word today that cameras at the white house didnt clearly show the incident involving the agent. so break that down for us. because some would dispute there was enough to keep the video on hand and not have it erased as they do with their purging system. >> as many places that have security cameras, they cycle over it. we are told that its 72 hours for the secret service. yet, there...