Bin Laden's Declaration of War

"By God's grace," bin Laden says on the tape, "we have formed with many other Islamic groups and organizations in the Islamic world a front called the International Islamic Front to do jihad against the crusaders and Jews."

"And by God's grace," he says at another point in the tape, "the men ... are going to have a successful result in killing Americans and getting rid of them."

CNN terrorism analyst Peter Bergen, who interviewed bin Laden a year earlier, believes the tape depicts a key moment for al Qaeda.

"They're going public," Bergen said. "They're saying, 'We're having this war against the United States.'"

CNN.com - Previously unseen tape shows bin Laden's declaration of war