LOS ANGELES (AP) — Three California men excited at the prospect of training in Afghanistan to become terrorists prepared, authorities say, by simulating combat with paintball rifles, wiping their Facebook profiles of any Islamic references and concocting cover stories. Just two days before they were going to board a plane bound for Istanbul — and then onto Afghanistan — FBI agents thwarted plans that officials said included killing Americans and bombing U.S. military bases overseas. The arrests last week in the U.S. and of the man said to be the ringleader, 34-year-old American Sohiel Omar Kabir, in Afghanistan was laid out in a 77-page affidavit, which included references to the group's online video conversations and audio recordings.