Today in World War II History—October 9, 1941
80 Years Ago—Oct. 9, 1941: President Roosevelt approves Vannevar Bush’s program to research the possibility of atomic weapons.
Pro-German president Arnulfo Arias of Panama is overthrown in a US-supported bloodless coup, replaced by Ricardo de la Guardia.
A week-long test of US air defense network begins: 40,000 civilian aircraft spotters of Aircraft Warning System search for “enemy” bombers with searchlights & artillery sights.