"TSA takes any breach in security very seriously. In light of the posting of sensitive security information on the web, TSA sought to identify where the information came from. The investigation is nearing a successful conclusion and the subpoenas are no longer in effect.

"In addition, a TSA investigator accidentally dropped a notebook, his personal property, in a public area. The notebook did not contain any sensitive security information; however, TSA will continue to review the incident."