The FBI claims to have thwarted a terrorist plot to carry out coordinated bombings in Los Angeles on New Year’s Eve, arresting five members of a pro-Palestinian extremist group accused of planning attacks in the City of Angels, The Post has learned. The “credible” threat came from radical members of the Turtle Island Liberation Front (TILF), according to a law enforcement source. Four were collared in Lucerne Valley in the Mojave Desert, where the extremists allegedly were testing improvised explosives, while a fifth was apprehended in New Orleans. “After an intense investigation, the Department of Justice, working with our FBI,...