TODAY: Tillerson slams Russia for Syria chemical attack, blames it for US strike on Syria; Duma speaker warns of consequences for US; NATO says Russian naval activity exceeds Cold War levels; what is Russia up to in Nicaragua? Medvedev slams Trump administration in wake of Syria strike; Kushner failed to disclose Russia contacts; Foreign Ministry dismisses UK criticisms as irrelevant. Yandex defends protest story disappearance.