i really believe that. >> reporter: robin dickinson also hopes to be off federal benefits soon. she has started her own family practice clinic to see low- income patients right now, she works one to two hours a day. but as her strength returns, she hopes to go back to full-time work. >> our original goal was to be off food stamps by now, but you can't predict how long a stroke takes to recover from. i was thinking i would be completely back to normal by now, which is not the case. but our goal is by next year, we're not going to need public assistance anymore. and we have a five-year goal of building my own building in order to have more services offered for my patients at affordable prices. i have big plans. the project seeks to expand to communities all across colorado later this year. >> woodruff: you can see more photos from the project, and read the stories behind them, on our art beat page. >> woodruff: now, a landmark study, funded by the u.s. justice department, to learn more about how the underground commercial sex market in this country operates, and to better gauge it