WASHINGTON U.S. Secretary of State Marco Rubio warned Tuesday that Syria could be weeks away from a fresh civil war of "epic proportions," as he called for support to the transitional leadership. "It is our assessment that, frankly, the transitional authority, given the challenges they're facing, are maybe weeks — not many months — away from potential collapse and a full-scale civil war of epic proportions, basically the country splitting up," Rubio told a U.S. Senate hearing. The top American