New airport screening measures will affect travelers from Guinea , Liberia and Sierra Leone . They 'll take effect at New York 's JFK airport , then in Atlanta , Chicago , Newark and Dulles . Score: 6 U.S. can track those traveling from West Africa via connecting flights . CDC director : `` We ca n't get the risk to zero here in the interconnected world ''
New airport screening measures will affect travelers from Guinea , Liberia and Sierra Leone . They 'll take effect at New York 's JFK airport , then in Atlanta , Chicago , Newark and Dulles . Official : U.S. can track those traveling from West Africa via connecting flights . CDC director : `` We ca n't get the risk to zero here in the interconnected world ''