Resumed. News 4s chris gordon is live at Dulles Airport where there is increased security in the wake of the assault. Chris . Reporter well, the airport calls it a robust security presence. Some of it is visible. Some of it is behind the scenes. In all the years i have been flying in and out of dulles and reporting from here, i have never seen security like this. Security is dramatically increased here at Dulles International airport. Canine teams move between bags and passengers. Airport Police Officers carrying assaultstyle rifles and side arms are pale troing both inside and curb side. Their presence alone can reassure passengers or be a reminder of yesterdays deadly attacks and bombings at the airport in istanbul. Im concerned. But i know security is up. I know they are on the lookout for things going on around the airport. I feel a little bit safer that security is beefed up. I think it will be okay. Turkish airlines were closed most of the afternoon. Check in for tonight begins a