A suspected crack user, center, walks with social workers and police to a waiting van near the Parque Uniao slum in Rio de Janeiro, Brazil, Wednesday, Oct. 17, 2012. A crew of social wo

 

              A suspected crack user, center, walks with social workers and police to a waiting van near the Parque Uniao slum in Rio de Janeiro, Brazil, Wednesday, Oct. 17, 2012. A crew of social wo
A suspected crack user, center, walks with social workers and police to a waiting van near the Parque Uniao slum in Rio de Janeiro, Brazil, Wednesday, Oct. 17, 2012. A crew of social workers, psychologists and others rounded up drug users found in the streets Wednesday, and took them to shelters. The adults don't have to stay, and the majority leave as soon as they've had a meal and a shower. (AP Photo/Felipe Dana)