Cover-Up of Convenience

On December 21 1988, 270 people died when Pan Am 103 was blown out of the sky over Lockerbie. It was the worst-ever act of airline terrorism against the United States. It's also been called the world's biggest unsolved murder.
Finally, after 11 years of investigation, political stalemate and legal delays, two Libyan men are facing trial for the Lockerbie bombing. But many observers -including legal and law enforcement officials close to the case -say the trial may not produce a satisf