Dozens of activists in San Francisco descended this morning into the Powell Street Station of the Bay Area Rapid Transit system or BART to protest BART policies toward the homeless. They are particularly concerned about a policy implemented in July of this year that allows BART police officers to arrest and issue citations to individuals sleeping or resting inside stations. BART officials say they have the legal right to keep station walkways clear and that doing so is a matter of safety. But protesters dispute both of these claims and say that people choose to rest in BART stations because they have no other options. KPFA's Andrew Klein has more.