The FBI undercover terror sting revealed today in Miami is only the latest example of how the FBI uses undercover informants to gather incriminating information from people suspected as possible terrorists.
The informant in the Miami case said he was an emissary from al Qaeda and actually administered an al Qaeda "oath" to the suspects, authorities said.
Some U.S. law enforcement officials labeled the Miami seven as "wannabees" with virtually no money to operate on their own.
In its last big terror sting in Miami, the undercover tape, obtained by ABC News, shows that the FBI informant provided the weapons and did most of the talking.
"Is good for mission, no?" says the FBI informant as the defendant looks on with a smile at a van loaded with weapons and explosives secretly supplied by the FBI.
The defendant, Imran Mandhai, was convicted on terrorism charges in 2003.