In September 2006, just prior to the fifth anniversary of the attacks of September 11, 2001, we spoke to Lieutenant William Keegan Jr. with the Port Authority Police Department. Parts of this interview became regular segments on September 11th anniversaries for years to come. Lt. Keegan was talking about the events of that day and of the book he wrote titled, "Closure." Please note that the audio quality of this podcast is compromised because the original archive was on audio cassette.