Pakistan releases computer expert

ISLAMABAD, Pakistan, Aug. 21 (UPI) -- A Pakistani computer expert whose arrest roused fears of a terrorist attack in the United States has been released without charge after three years.

Mohammed Naeem Noor Khan may have been working with Pakistani investigators, ABC News reported.

"Khan apparently had agreed to cooperate with Pakistani officials and was engaged in a sting operation against al-Qaida when his name showed up in the U.S. press as part of a story about planned attacks in the U.S., which appeared during the U.S. presidential election," said Richard Clarke, the former presidential security adviser now working as a consultant to ABC News. "Khan may have bargained for an early release because he cooperated."

Investigators found information on Khan’s computer that appeared to show al-Qaida scouting major financial buildings in the United States and the London subway system.