The Lusitania was a British ocean liner that was sunk off the Irish coast—an area that the ship's crew had been warned to avoid—by a German U-boat during World War I. The ship's submersion took only 18 minutes, and nearly 1,200 people died. Many questions surround the incident, including why the ship sank so quickly, what caused a secondary explosion, and whether or not the vessel was transporting contraband munitions. What did dive teams recently reveal about the ship's cargo? Discuss (http://forum.thefreedictionary.com/postst57814_RMS--i-Lusitania--i--Sunk-by-German-U-Boat--1915-.aspx)