did not contain sounds of the assassination gunfire and that it would be of "doubtful utility" as evidence to prove or disprove a conspiracy. 90% of Dealey Plaza spectators reported to have heard 3 shots or less. Digital restoration In 2003, ABC News aired the results of its investigation on a program called Peter Jennings Reporting: The Kennedy Assassination: Beyond Conspiracy. Based on computer diagrams and recreations done by Dale K. Myers, it concluded that the sound recordings on the Dictabelt could not have come from Dealey Plaza, and that Dallas Police Officer H.B. McLain was correct in his assertions that he had not yet entered Dealey Plaza at the time of the assassination. In the March 2005 issue of Reader's Digest, it was reported that Carl Haber and Vitaliy Fadeyev were assigned with the task of digitally restoring Dictabelt 10 by Leslie Waffen from the National Archives. Their method consisted of using sensors to map the microscopic contours of the tracks of old sound recordings without having to play them using a stylus, which would further degrade the sound. Dictabelt 10 was worn from countless playings and cracked due to improper storage. By 2010 digital restoration of the Dictabelt seemed a more distant prospect, with both funding and final approval for the project unlikely to be secured in the near future. Possible origins Left unanswered by the professional analyses was the question of whose open microphone captured the sounds recorded on the Dictabelt, if not Officer H.B. McLain. Jim Bowles, a Dallas police dispatcher supervisor in November 1963, and later Dallas County Sheriff, believes it originated from a particular officer on a three-wheeled motorcycle stationed at the Dallas Trade Mart, the original destination of President Kennedy's motorcade, along the same freeway to Parkland Hospital, which would account for the sound of sirens rushing by. McLain himself believes that it was from a different officer on a three-wheeler near the Trade Mart, who was known for his whistling. When interviewed by author Vincent Bugliosi, the officer acknowledged that his microphone could have been stuck in the open position (he did not recall hearing any transmissions for several minutes), and could later have become unstuck after he followed the motorcade to Parkland Hospital. Further reading Stokes, Louis (Chairman, House Select Committee on Assassinations). (29 March 1979). Report of the Select Committee on Assassinations of the U.S. House of Representatives. Ramsey, Norman