May 7, 2004 (CBS/AP) A new audiotape with the purported voice of Osama bin Laden offers rewards of gold for the killing of U.S. and United Nations officials from 10,000 grams for top U.S. administrator L. Paul Bremer to at least 500 grams for citizens of U.N. Security Council nations. . . .
"You know that America promised big rewards for those who kill mujahedeen (holy warriors)," the speaker said. "We in al Qaeda organization will guarantee, God willing, 10,000 grams of gold to whoever kills the occupier Bremer, or the American chief commander or his deputy in Iraq." . . . 

Terrorism expert Rohan Gunaratna said the al Qaeda offer was unprecedented.

"In the past, al-Qaeda always said, 'Kill the Americans, kill the Westerners,' but did not specifically name individuals," Gunaratna, who is head of terrorism research at the Institute of Defence and Strategic Studies in Singapore, told the BBC.

The recording promised the same 10,000-gram reward for the deaths of U.N. Secretary-General Kofi Annan and his envoy to Iraq, Lakhdar Brahimi.

"The United Nations is nothing but a Zionists' tool, even if it worked under the cover of providing humanitarian aid," the voice said. "... Whoever kills Kofi Annan or the head of his commission in Iraq or a representative like Lakhdar Brahimi, he will be awarded the same prize of 10,000 grams of gold."