A 1993 standoff between Branch Davidian cult members and U.S. government agents results in the deaths of many children and adults.

Retrace each step of the Washington, D.C. snipers as they stalked their prey, toyed with police and sent waves of fear through the community. Deconstruct the events of those frightful weeks and the intense police struggle to stop the killers.

Elusive al-Qaida leader Osama bin Laden escapes a barrage of bombs and gunfire during the battle at Tora Bora, Afghanistan, in 2001.

At the U.S. Embassy in Tehran, Iran, on November 4, 1979, 66 Americans are taken hostage and held captive for 444 days. The U.S. makes several unsuccessful attempts to secure the release of the hostages, including, imposing harsh economic sanctions, breaking diplomatic relations with Iran, and planning a military rescue mission. Finally, in January 1981, Algerian diplomats mediate an agreement between the U.S. and Iran, securing the freedom of the hostages.

In 1992 Los Angeles, mobs loot stores, burn buildings and attack innocent bystanders after a jury acquits four police officers of beating a black motorist.

In 1978 Guyana, more than 900 members of Peoples Temple die after drinking beverages laced with cyanide.

A look at the U.S. strategy for fighting the 1991 Persian Gulf War and whether changes could have been made then to avoid the current situation in Iraq.

The FBI targets New York City Gambino crime-family boss John Gotti.