dr. fouchey said and dr. tom freeman talked about this, you cannot get ebola froern direct contact of bodily fluids of somebody who is at that time symptomatic. the most effective way to go about controlling this is to prevent those individuals from getting on a plane in the first place. i think it's imports to remember that since these meyers have been in place, dozens of people have been stopped from get okay flights in the region. >> we now know people have gotten on planes anyway. why not have the u.s. customs and immigration people ask them clearly to do it? >> i think what we have seen is we have had, in an individual in texas, who did come to this country and later became symptomatic and that person is being isolated and dealt with and significant contact trace something being done. your question about passive versus more active screening, i think is an understandable one but as secretary burwell indicated, we have taken a number of steps to ensure that customs and border control individuals -- teams a