Threat of revenge emerges after Osama bin Laden killed -- Hornet nest stirred? False flag?

A day after international exaltation over Osama bin Laden's death, questions remain about who might take over his terrorist group and whether a trove of material gathered from his compound might tip off U.S. officials to other al Qaeda leaders and plots.

But already, at least one threat of revenge has surfaced against the United States, which carried out the mission to eliminate bin Laden.

"We are proud on the martyrdom of Osama," Ahsan Ullah Ahsan, spokesman for Tehrik-e Taliban Pakistan, said late Monday. "We shall definitely take revenge (on) America."

When asked how the Pakistani Taliban organization would carry out revenge on America, Ahsan said, "We already have our people in America, and we are sending more there."

Earlier, CIA Director Leon Panetta said in a message to agency employees that terrorists "almost certainly" will attempt to avenge bin Laden's death.

U.S. diplomatic facilities around the world have been placed on high alert following the announcement of bin Laden's death, a senior U.S. official said, and the U.S. State Department issued a "worldwide caution" for Americans.

The travel alert warned of the "enhanced potential for anti-American violence given recent counter-terrorism activity in Pakistan." (read more)