Summary of Testimony given by Mr. Wallace to Alcohol, Tobacco and FirearmsWitnesses passenger security screening September 11 Terrorist Attacks, 2001Mr. Wallace gives testimony to his observations and experiences on May 10, 2001. He observed two middle eastern men photography and video taping security checkpoints. After engaging the two men, Mr. Wallace followed them to a security checkpoint before being called away.Brian Sullivan, FAA Special Agent (Retired)September 29, 2001Public Domain