WASHINGTON -- U.S. officials are telling lawmakers there’s been no decision yet on whether to trade five dangerous Taliban prisoners now held at Guantánamo Bay as part of nascent peace talks with the Taliban.

Director of National Intelligence Jim Clapper told Congress Tuesday that the White House would first have to determine where the prisoners would go and how they would be watched to make sure they did not return to militancy.

At Congress’ annual hearing on worldwide threats, Republican Sen. Saxby Chambliss said the five men are considered too dangerous to release.

CIA director David Petraeus said his agency had run several possible scenarios to figure out how best to free them, but he and Clapper stressed that Congress would be consulted.

The Taliban has identified some of the men whose release they seek as Mullah Mohammed Fazl of Uruzgan, former Taliban chief of military staff; Mullah Noorullah Nori of Kabul, a former Taliban military chief in the north; and Khairullah Khairkhwa of Kandahar, the former Taliban governor of Herat.