One of the world's most intense manhunts has come to an end with the death of Osama bin Laden.  But White House and homeland security officials are warning that the killing of al Qaeda's leader doesn't mean the war on terror is over.

Investigative journalist Scott Wheeler has worked undercover in the Middle East.

He says the killing of Osama bin Laden ends one chapter of the war on terror, but opens another -- especially if terrorist leaders like Ayman Al-Zawahiri step up to take control.

Click play to watch all of Wheeler's comments to CBN News.