mr. waggingner, we have heard about the issue of travel restrictions can you walk us through the strengths and weaknesses. welsh -- >> if you can hurry with a quick answer. >> so -- we have the ability to you the data that they give us to be able to see where travel is originating from. they are instances where travelers may go to different locations we may not see that, butler our questioning and our view, we can identify that they have been to these regions or if they come through a border as they fly to canada or mexico. the possibility is there, but the possibility is there that we would miss one. it is easier to manage and control it when we know people are coming from and not intentionally frying to deceive it. >> you are listening to the continuing coverage of the congressional hearings into the ebola outbreak on u.s. soil. they have been calling it an epidemic. our guest in the studio taking issue with that phrase. also, while the speakers were speaking we learned that a yale university student is now being tested for ebola as well. the student spending a month in liberia, research