had deliberately reversed course, flying back on a heading towards the indian ocean. >> how much of a turnback it made, 20 kilometers, 10. >> referee: suddenly, anything became possible, wild and intricate internet theories, a plot led by two iranians who boarded with stolen passports. the only problem, they weren't terrorists, just trying to begin new lives in europe. suspicions soon shifted to the only people capable of flying the boeing 777, the pilots. capital shah had suspected some practiced the changes in altitude on his home flight simulator. but analysis of the fbi's data turned up nothing, no claim of responsibility, no known ties to terror groups among passengers or crew, no motive supported by evidence, incident country cat analysis of satellite handshakes took the search to an area where