Donald Rumsfeld Speaks Out on Osama Bin Laden's Death

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In an appearance on the "Today" show Monday, the former Secretary of Defense says he's "impressed by the spontaneous demonstrations across the U.S."

Former Secretary of Defense Donald Rumsfeld appeared on the Today show Monday to react to Osama Bin Laden's death, which President Barack Obama announced Sunday night.

"I was impressed by the spontaneous demonstrations we've seen across the U.S.," he said live from Washington, D.C. "There certainly was an understanding this was an important event."

"This is a man who…assumed the U.S. would do nothing. He's a person who issued a fatwa against American, urging Muslims to kill Americans," continued Rumsfeld, who spoke with Matt Lauer, who was reporting live from Ground Zero in New York City.

Lauer asked Rumsfeld if Pakistan, the country where Bin Laden was found, could still be considered an ally in the war against terror. "I think it's fair to ask those questions and pursue those questions," said Rumsfeld.

And just because Bin Laden has been killed doesn't mean terrorism will end.

"There are others out there. He will be replaced," warned Rumsfeld. "The key is the fact that the Bush administration and Obama administration put pressure on terrorists, which led to intelligence to capture him."

Rumsfeld also said "we have to be alert to the possibility" that there could be an attack now that Bin Laden has been killed.

"There has been intelligence that if he's captured or killed, there could be a violent attack on America or Europe one way or another," he said. "Intelligence organizations are being very attentive during this period."