Grounding every flight isn't a valid option. However, a temporary ban of people from the hot spot countries traveling into the US may be prudent. The taking of temperatures on flights is a total fail. Duncan, the Liberian man who died in Dallas didn't have symptoms until days after he traveled. Taking the temperature of people isn't going to do a thing unless the person traveling is already sick and showing symptoms. Keeping out people who may be carriers of Ebola from entering the US is the way to go. Government workers, military, aid workers who are sanctioned to travel to and from hot spot countries should be quarantined and tested before letting them back into society.
The red herring of the "flu" that's been the top argument topic against travel bans is ludicrous. The flu doesn't have a 70% mortality rate. The flu has a vaccination that is available each and every year and is very effective. Comparing the two isn't even valid.