Ignore it at your peril

The Japanese achieved complete surprise at Pearl Harbor, but incredibly the US forces ignored two major warnings. A US destroyer fired at, and depth charged, a Japanese midget submarine trying to sneak into Pearl Harbor one hour before the air attack. Also that morning soldiers manning the new Opana radar station saw a cloud of blips 132 miles from Oahu - "probably more than 50 aircraft". They called the Information Centre but were told: "Don't worry about it."