This is a good idea except we never hanged the nazi's we hired them to build us rocket ships and bombs and pretty much everything else that made the USA. ISIS are more difficult because they are mixed with good people in fact they are torturing good people everyday because their beliefs differ just a little...
Fu&king scummy isis does need taken care of though by any means necessary....
Scientists got way, many went to th US, they were not the masterminds of the regime, they did their job as scientists and engineers, of course some might had some guilt, they got lucky...
https://en.wikipedia.org/wiki/Nuremberg_trials#Executions