their own weapons. both policeman were placed on administrative leave. >> the department of homeland security has discovered security failures at airports. they were tasked with smuggling weapons and other contraband through airports across the country. nbc news has confirmed they failed to defect smuggled to detect weapons in 97% of the cases. in one case an alarm sounded but the screening officer failed to detect a plastic explosive taped to an undercover agent's back. the head of the tsa has been reassigned. president obama has nominated peter nefenger to be the next administrative. lindsey graham has announced he's seeking the nomination for president.