"Nothing was passed‚" Ambassador to the United States Anatoly Antonov told Russian state news agency TASS while answering a question about whether any information was handed over by the US side before the terrorist act. He added‚ "No concrete information‚ nothing was transferred to us." A U.S. State Department official said Saturday that the U.S. government had shared information on a possible attack with Russian authorities in accordance with its longstanding "duty to warn" policy....