That is especially true if, as posited by Matthew Simmons in his compelling new book, Twilight in the Desert: The Coming Saudi Oil Shock and the World Economy, much of the world's putative reserve oil in Saudi Arabia is not actually there .

CENTERFORSECURITYPOLICY: Wanted: A real energy security bill

Alexander Selkirk--the sailor whose true story inspired Daniel Defoe's 1719 novel, Robinson Crusoe--was abandoned on a desert island.

FORBES: Castaway