All travelers flying into the United States from the West African countries most impacted by the Ebola virus can only enter the U.S. through five airports, Homeland Security Secretary Jeh Johnson announced Tuesday. Starting Wednesday, passengers traveling from Liberia, Sierra Leone or Guinea can only gain entry through the international airports in New York, Washington, D.C., Atlanta, Chicago and Newark, New Jersey - which account for 94% of all incoming travelers from those countries, according to the Centers for Disease Control and Prevention.