What a Broom Tied to a Periscope Means in the U.S. Navy

On February 7, 1943, the USS Wahoo sailed proudly into Pearl Harbor, a broom tied to her periscope. It was a wink to an old Naval tradition signifying a clean sweep of her enemies.

From: HELL BELOW: America Fights Back
http://bit.ly/2aEfcBj