targeting the men whose continuing patronage drives the underground sex trade. >> the male johns, the customers. >> we're going after the johns. a lot of times in these operations you see we're going after females. we understand that females are a major part of the problem, but they are also victims. if we can attack this, if we can address this situation by going after the customers, well, then i think it's our duty to try and address this big problem on all sides of the coin. >> undercover officers will be wendy. everybody take a look. and felicia. >> two veteran female officers prepare to go undercover as street walkers. >> you want it through your bra or -- >> okay. >> stick it underneath the straps. you should be fine. >> they are wired for sound -- >> yeah, that's working. >> -- and must also brace themselves for the very real danger that comes from playing prostitutes out on the track. >> i've been doing undercover work for about six years and had some interesting experiences. i've been hit. i've been spit on.