Cut off ALL travel with ebola-infected countries. No buts or ifs. Citizens of the US may go back to US before a deadline

It is very unsafe.
One of the cases in the US includes a family in Brooklyn Park, Minnesota. A family with relatives from Africa suffered nine deaths when a man from this family came back from Africa with two misdiagnosed diseases. Unaware that his disease was actually Ebola, the unprepared and unsuspecting victims of this disease contracted Ebola, too, and suffered a very painful death.
Eight people could've still been with us if the man would not have travelled to the US. But even then, Ebola is difficult to diagnose because of shared symptoms with the cold in the beginning of infection. It is, therefore, still risky to travel from an infected place after being examined, for ex., at an airport.
"It's better to be safe than sorry."
Don't think with your emotions. Think logically.