Iran may use UN nuke talks to seek leverage with big powers

VIENNA, - Iran may be holding back from working with a United Nations investigation into its nuclear program to use it as a bargaining chip in pursuit of significant sanctions relief or other concessions in broader negotiations with world powers.

"They don't want to offer substantive cooperation," one Western diplomat said after the IAEA's latest stab on Jan. 16-17 at coaxing the Islamic Republic into starting to address questions about its atomic activities.