California's homeless crisis worsens

Local govts spend millions annually, but housing costs remain an obstacle

During her 10-minute walk from her home to the subway station, Sophia Zhang, a resident of San Francisco, said she saw homeless people lying on the street every day. Occasionally, she saw some injecting themselves with a needle or shouting at passersby.

San Franciscans have found themselves increasingly frustrated by the swelling population living on the street. Pictures of homeless camps and human feces on the street can be sent to SF311 Mobile, an app for reporting quality-of-life issues.