U.S. still considers Arar a threat

Though Maher Arar has long been cleared of any possible wrongdoing, the U.S. still considers him a terrorist threat.

Arar, a Canadian citizen, was taken by U.S. authorities in 2002 and sent to Syria, where he was tortured for a year.

U.S. ambassador to Canada David Wilkins has said an unspecified, secret assessment of intelligence is keeping Arar out of the U.S. and even aircraft that would fly over the U.S.

It's not clear whether the information is the same that led to the false imprisonment. It should also be pointed out that the U.S. has always had the right to extradite him; you don't have to look any further than the case of Marc Emery. To extradite Arar, the U.S. would need to charge him with a crime, something the U.S. has not done.

The investigation in Canada into what happened has resulted in shakeups in the Royal Canadian Mounted Police (RCMP). There has been no investigation on the U.S. side.