Changed World

Sept. 11, 2001 Four planes hijacked as terrorists launch attacks on the World Trade Center in New York City and the Pentagon in Washington. A fourth plane crashes in Pennsylvania

Sept. 13, 2001 Police in Brussels arrest Nizar Trabelsi and another suspected terrorist. They also find an Uzi submachine pistol and a list of chemicals used to make explosives. Trabelsi is believed to have been planning an attack on the U.S. embassy in Paris. Jérôme Courtellier and Mohammed Berkous are taken into custody in raids in...