Dand Dats News Today

Back on or not. he is the top-ranked candidate right now. hes got in polls rating the highest of all the dand dats in the race at the moment. well continue to follow that. now for more on that deadly bombing in house cmoscow. at least 35 people were killed at the airports international arrivals ept rance. now officials are ramping up security. terror attacks are not new na city. lets bring in jill dougherty who has spent aloft time in russia. jill, give us some context on this. >> well, you kn...