People are completely flipping out about these two patients who were brought in under extremely controlled conditions. Why do "we" believe we are suddenly in extreme danger? We have an open society. People are arriving in this country from western Africa on a daily basis. Passenger John Doe boards a plane, looking happy and healthy just like everyone else boarding. However, he is right in the middle of his incubation period after being infected with ebola. A week later, he shows up to his local ER complaining of "flu-like symptoms," just as several other people with various illnesses which present as "flu-like symptoms" do. Nurses and other health care staff do not sit in the ER wearing Hazmat gear, and they approach this patient just like they do any other who has a fever. They use universal precautions but the initial interactions are not made with the assumption that we are dealing with ebola.
So if these two patients with known infection had been denied entry we would feel that we were somehow safe from this disease? Really? It's a totally false sense of security.