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CNN terrorism expert Peter Bergen has spent his career tracking terrorists. He has stood face to face with some of the deadliest murderers on the planet, risking his life traveling to countries like Pakistan, Afghanistan and Yemen. His newest book is The Osama bin Laden I Know.
Peter says the newest bin Laden tape illustrates several highly important points. The first of which, he says, is "that he's alive and well. He wants to be in the game."
"More ominously is his offer of a truce," Peter says. "Islamic law has a tradition of warning before an attack."