ah william bill binnie was the 4th ranking officer in the national security agency or an essay at the time of the september 11th attacks. as the agencies technical director, he was one of the most highly cleared officers in the entire organization. after the september 11th attacks, the an essay and other national security agencies were scrambling to recover. and at the same time to make the u. s. a safer place. but some of the more cynical leaders at an essay. busy also saw an opportunity, they saw an opportunity to do something in the name of national security that had heretofore been denied to them. it was against the law, and indeed it was against an essays own charter to spy on american cit. we're happy to have bill benny with us today. welcome to the show, bill. bill, you were a very senior, an essay officer when the september 11th attacks occurred. as technical director, you were intimately involved in the creation of thin thread, which was an effective and cost effective technology designed to keep american safe and to disrupt future terrorist attacks. what happened to thin thr