. >> we had an undercover agent, special agent robert rodriguez, who actually had interaction and metith david koresh. >> koresh was not shy about his arsenal or his intentions. >> he says, you know, i don't care what the atf says or does. it's my right to, you know, to bear weapons and nobody is ever going to take me down. that's a red flag. >> when you couple a belief system of an apocalypse with a cult leader who is prepared to die and take everyone with him, giving him the tools to do so was a recipe for disaster. >> shortly after the undercover operation began, koresh stopped leaving the compound fearing he might be arrested. >> we knew pretty much from day one that we were being watched. >> after just over a month of surveillance, agent aguilera secured warrants to search the davidian compound and arrest david koresh. the warrants would be served on sunday, february 28th. the day before the "waco herald tribune" would finally run its story. a detailed expose titled "the sinful messiah." the paper also found out about the raid. >> one of our reporters got a tip from a confidentia