tensions us grow fear vladimir putin military may carry secret nuke test arctic base test show dangerous spike radiation level across europein response possible threat us air force send special wc-135 constant phoenix raf mildenhall whose main mission detect identify nuclear explosions air.tracking uk us air force wc-135c constant phoenix nuclear explosion 'sniffer'62-3582 cobra55https //t.co/fvbsntinvp pic.twitter.com/bb1wbdzazk civmilair civmilair february 17 2017while official statement us military reason aircraft deployment source suggest aircraft send investigate elevate radiation levels.many point proof positive russia nuclear test novaya zemlya near arctic source sun uk break us deploy nuke sniffer plane test threat russia