Last week, on a day when rain fell heavy from the sky, I explored the World War II Valor in the Pacific National Monument. You might know the place as, simply, “Pearl Harbor,” where the USS Arizona Memorial resides over a warship that sank in less than nine minutes on December 7, 1941, a sunny day when what fell from the sky were bombs. One such explosive--a 1,760-pound armor-piercing bomb--blasted through the deck of the USS Arizona and entombed a crew of 1,177 men. The ship burned for three days afterward. It sits today where it came to rest 70 years ago.