In February 1993, President Bill Clinton had only been in office for a few weeks when one of the most important events of his presidency began to take shape. Ironically, it would involve a group that the vast majority of Americans had never heard of and knew absolutely nothing about.

The Branch Davidians were an obscure religious sect located in Texas, but members of the group led by David Koresh in Waco, Texas stockpiled enough weaponry to catch the attention of the federal government. The US Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) ultimately decided to serve arrest and search warrants at the compound for the possession of illegal weapons, even though they fully expected it would require a raid that could potentially turn fatal.

The ATF hoped to use the element of surprise when it commenced the raid on February 28, but the Branch Davidians were ready for them, which led to an intense firefight between the two sides that resulted in the deaths of four ATF agents and a number of Branch Davidians. With that, the FBI got involved, and federal agents settled in for a standoff that would last about 50 days, trying everything from negotiating to using sleep deprivation tactics to coerce the Branch Davidians into ending the confrontation. Finally, on April 19, government agents breached the compound's walls and tried to use gas to flush the Branch Davidians out peacefully, but a series of fires broke out and quickly spread, killing the vast majority of the occupants inside, including many young children.

Naturally, controversy spread over how the siege ended; for example, while most believe the Branch Davidians intentionally started the fires as part of a mass suicide, others insist it was the fault of the ATF. Debate also raged over whether the government could have and should have made different decisions to defuse the situation.

No matter which side people came down on, the violent confrontation embarrassed government officials, and Dick Morris, an advisor of Clinton's, even claimed that Attorney General Janet Reno only kept her job after Waco by threatening to pin the blame on the president: "[H]e went into a meeting with her, and he told me that she begged and pleaded, saying that...she didn't want to be fired because if she were fired it would look like he was firing her over Waco. And I knew that what that meant was that she would tell the truth about what happened in Waco. Now, to be fair, that's my supposition. I don't know what went on in Waco, but that was the cause. But I do know that she told him that if you fire me, I'm going to talk about Waco."

In addition to influencing how the government approached potential future conflicts with other groups, Waco's most important legacy was that it enraged people who already had an anti-government bent. The most notable, of course, was Timothy McVeigh, who conducted what was at the time the deadliest terrorist attack in American history in Oklahoma City on the second anniversary of the final confrontation at Waco.