>> yeah. it gets real hard. >> what exactly was that it keith bought? the answer lies inside this nondescript building behind this barbed wire fence. it is what some call a telemarging boiler room. >> good morning. >> we're about to today undercover with our hidden cameras. this woman may sound like an insurance agent. >> you are approved for medical insurance. >> but she is not. >> all preexisting conditions are accepted. >> the game here is sales. keep watching. it might be your best insurance against being taken. >> how revealing is this material that we've obtained? >> this is incredible. >> our investigation also found, thomas, that these people are targeting the most vulnerable. the 50 million folks without health insurance for whatever reason. they're out of a be jo. they cannot afford it. they have a preexisting condition. >> the example of the one