I don't think I ever heard the whole story on this before. What a big mess. Kind of like the Randy Weaver thing at Ruby Ridge where something small turned into Americans getting killed - by their own gummint!!!!
Update: The documentary you want is "Waco: The Rules of Engagement" (1997) a very balanced review of the situation and the government's outrageous behavior. Most chilling is the FBI (?) agent making sure there was plenty of blank VHS tapes to record her "success".