BOSQ[?], 09/21/65: Army Engineers describe how they used a transducer to discover a missing barge in the Mississippi River near Baton Rouge, Louisiana. The vessel sank after it was ripped loose from its moorings during Hurricane Betsy on September 10. The incident prompted an extensive search by Army, Navy, and civilian divers. The barge was loaded with 600 tons of chlorine, enough to kill an estimated 40,000 people should the chemical be accidentally released. Shipping traffic was halted on the Mississippi River until the barge was found on September 16.