welcome back, everybody. the popular website craigslist of course helps connect people so they can buy and sell various items. but in some cases, sex is also what's for sale. >> now a new ad campaign is calling out the website, saying they have turned a blind eye to people victimized by prostitution. david wright reports. >> reporter: in the adult section of the popular website craigslist, the world's oldest profession meets modern technology. but are all these women consenting adults? anti-trafficking groups have published ads in "the washington post" and the "san francisco chronicle." an open letter to the founder of craigslist written by a young woman, a.k. >> i was sold for sex by the