Given the number of choices you have to make and the fact that almost all of those choices are life or death or ethical decisions, I think that it's inevitable that every president will have blood on their hands. So I think it's possible to think of people who have co-signed or had terrible things done on their watch as good people. I've often heard the "People are better than the worst thing they've done" statement used to explain why people convicted of crimes should be treated humanely. I think it applies here too.