A columnist for the British newspaper The Guardian expressed incredulity about the authenticity of this report, questioning whether a paper passport could survive the inferno unsinged when the plane's black boxes were never found. According to testimony before the 9/11 Commission by lead counsel Susan Ginsburg, his passport had been "manipulated in a fraudulent manner in ways that have been associated with al Qaeda." Passports belonging to Ziad Jarrah and Saeed al-Ghamdi were found at the crash site of United Airlines Flight 93 as well as an airphone.