The international race to develop biological weapons during the 20th century, the challenges scientists faced, and the moral dilemmas posed by their eventual success.
In 1941, President Franklin Roosevelt convinces a largely isolationist Congress to pass the Lend-Lease Act, allowing the U.S. to sell or lend war materials to "any country whose defense the President deems vital to the defense of the United States."
Find out more about the Popular Front for the Liberation of Palestine, the hijackers' perspective, the experience of being a hostage, flight crews and airport security, and journalists in a new age of global terrorism.
