Why would anybody ......... I mean ANYBODY go to west Africa now or in the last few months. I don’t care if your whole family lives there. Stay out of all of Africa.
I agree it would be weird to vacation in Liberia right now. These two were there to fight ebola, by helping set up a computer network to track ebola cases. That seems like a good thing to me. They weren't there to interact with patients.
As for the rest of Africa, I'm not sure why it's dangerous to be in Tanzania or Ghana or South Africa or any other country that has zero cases of ebola. You're more likely to run into an ebola patient in the US than you are there.