Oil from the BP oil spill disaster is spewing again into the Gulf of Mexico at nearly full force after a venting system connected the so-called containment cap over the blown-out wellhead was damaged in an accident with a robot sub, said Coast Guard Adm. Thad Allen, the commander in charge of the government's effort to control the 65-day-old spill. Oil spill - Gulf of Mexico - BP - Wellhead - Oil