The temperature scans are not totally useless. It is true, they won't catch all infected individuals, but they will catch contagious ones, thus saving fellow passengers.
If Duncan had been contagious when he boarded in Monrovia, I expect the mess would be bigger than it is by now.
If Duncan had been contagious when he boarded in Monrovia, I expect the mess would be bigger than it is by now.
The real danger is has this already happened with someone else and we just dont know yet.