On February 28, 1993, 75 federal agents from the Bureau of Alcohol, Tobacco, and Firearms closed in on Mount Carmel, the headquarters of the Branch Dividian religious group. They had an arrest warrant for the group's leader, David Koresh, on suspicions that he was housing an illegal arsenal of weapons. The next 51 days would turn into one of the most famous attacks on Americans by their own government that has ever happened.