oakland, ann reuben, ktvu channel 2 news. >>> more details now in the tsa's precheck program. once enrolled travelers do not have to remove their belts, shoes or jackets at the security checkpoint. also they do not have to remove their laptop from its case or pull out the bag of approved liquids. >>> state regulators are joining the investigation into the bart train malfunction that sent 9 people to the hospital. the train from pittsburgh to san francisco stopped in the berkeley hills tunnel after an electrical short caused the emergency brakes to suddenly activate. it was announced today that the utilities commission will be investigating what happened. a bart spokeswoman says the cpuc initiates an investigation whenever more than two people require medical transport after a train incident. >>> three teenage boys are in jail and two girls recovering tonight after an alleged gang rape in richmond. regional park police say the two girls, 14 and 17, were raped last friday in the alvarada park area of wildcat regional park. investigators say the boys, one aged 15 and two aged 17,