Historians credit left-wingers with coining "politics of fear" to belittle Sen. Joseph McCarthy's campaign against communists in the U.S. government. The phrase went into hibernation in the 1960s, a torpidity even warmonger-in-waiting Lyndon Johnson's daisy-girl ad couldn't disturb, only to reemerge in the 1980s to denigrate Ronald Reagan's Cold War-winning strategy. These days, the phrase has become the lefties' No. 1 rhetorical trump card against the war against Islamic terrorism. To them, Americans have more to fear from the Bush administration than from the terrorists who seek to bring America to heel. Sen. Barack Obama uses it in almost every...