SLIDESHOW: The worst hostage crises
A special bus carries six terrorists and 41 hostages, among them 11 oil ministers from OPEC, to the Vienna airport, Dec. 22, 1975. At left, terrorist, presumably "Carlos", a Venezuelan. The six terrorists who had taken over the OPEC headquarters and held 41 people hostage drove to the airport and boarded a DC9 aircraft they had commanded to fly them to Algeria. (Bernhard Frye/AP Photo)
Other Slideshows
Photos: 28 spectacular sunsets
Slideshow: Cities that lost pro teams and got them back
Phoenix police attend kindergarten graduation of fallen officer's daughter
Photos: Baby lemur born at Bristol Zoo Gardens
Over-the-top fast food creations
Photos: Forbes' list of world's most powerful women
