In September 1941, Japan's leaders had a question for Adm. Isoroku Yamamoto: Could he cripple the U.S. fleet in Hawaii? Yes, he said. Then he had a question for the leaders: But then what?

Following an attack, he said, "I shall run wild considerably for the first six months or a year, but I have utterly no confidence" after that. Yamamoto knew America: He had attended Harvard and been naval attache in Japan's embassy in Washington. He knew Japan would be at war with an enraged industrial giant. The tide-turning defeat of Japan's navy at the Battle of Midway occurred June 7, 1942 - exactly six months after Pearl Harbor.

Today, some Washington voices are calling for U.S. force to be applied, somehow, on behalf of the people trying to overthrow Moammar Gaddafi. Some interventionists are Republicans, whose skepticism about government's abilities to achieve intended effects ends at the water's edge. All interventionists should answer some questions: