It's preventive detention for Mohammad Saif Ur Rehman Khan, who according to U.S. authorities and Chilean police was found with traces of explosives.

Khan says it all must be a misunderstanding, that he's a peaceful man and that he wants America to be safe and secure.

But the judges said Khan is a danger to security, society and the success of the probe. Now he must go back behind bars while Chilean prosecutors build their case.