The family fighting to keep a brain-dead 13-year-old girl on medical support through Christmas blasted administrators at Children's Hospital Oakland on Thursday evening, saying that hospital officials told them in a private meeting that the girl had to be taken off her ventilator "quickly." "They said, 'What don't you understand?' She is dead, dead, dead,'" said Omari Sealey, the uncle of Jahi McMath, the Oakland teen who has been kept alive by machines since complications from a tonsil surgery last week in a case that has brought national attention and prayers from social media users around the world. "They just...