what are you guys doing? you say you screen all these ads manually on your blog. >> i've never -- i don't know what this is. >> jim buckmaster's blog, he says these are being screened. >> have you reported this to us? >> reporter: why do i have the responsibility to report this to you when that's your website? you're the one posting this online. i just want to know -- i mean -- okay. it's just we've run into a lot of victims and a lot of advocates that pretty much call your site the walmart of child sex trafficking. in 2008, craigslist agreed to report any suspicious ads to the center for missing and exploited children, which works with police to find and rescue trafficking victims. two years and hundreds of thousands of sketchy ads later, the center says craigslist has reported fewer than 100.