ROUGH: Early morning in Dulangan, Oriental Mindoro. A woman waits for her ride: Is she being picked up by automobile or paddleboat? A young woman commutes via "roro" or a passenger ferry that also carries vehicles across the Passage. She is going from Batangas City to Oriental Mindoro. The Passage has seen many sinkings and accidents: the Passage has treacherous currents, but more dangerously, many passenger lines and commercial ships don't follow proper safety codes. Roro ferries are popular means of transport between islands. Many people commute for work or to go to school. Many liners don't observe proper safety regulations, so sinking used to occur very often