So you don’t consider calling someone “this idiot” is an insult. Fine. To each his own.
Few would agree with you.
If Dr. Brantly returns to Africa, good for him. He is possibly the most qualified doctor in the world to work in the ebola wards, considering the antibodies he no doubt carries.
Neither you nor the American public were ever at risk from Dr. Brantley or Mrs. Writebol. You are, however, in imminent risk from whoever is coming across the southern border and whatever they carry, whether illness or sword for beheading.