"Brother Colonel" Moammar Gadhafi's time is up, but Libya has seen six months of fighting, at least a thousand deaths, and foreign military intervention in support of the rebels. This is not the kind of nonviolent revolution that we have come to expect in the 21st century.

Are the rules changing again?

From Lisbon in 1974 to Manila in 1986, East Berlin in 1989, Moscow in 1991, Jakarta in 1995, Belgrade in 2000, and Cairo early this year, popular revolutions using nonviolent tactics have driven dictators from power.