1. The Three Mile Island accident in 1979 was the worst nuclear accident in US history. Half of the fuel in one reactor melted down, and large amounts of radioactivity were released, though most was contained.
2. President Bill Clinton was impeached by the House of Representatives in 1998 on charges of perjury and obstruction of justice.
3. President George W. Bush signed the Patriot Act into law on October 26, 2001 to strengthen tools to prevent terrorism after 9/11.