It's well worth reading in full. But here's a paragraph:
As Christians and as Catholics, we are required to follow Our Lord's impossible example and not just love our friends, but to love our enemies. This does not mean pacifism; and I have a long, long record of supporting what I believe were just wars. I mean understanding that war is always evil even when it is necessary, but that some things, like torture, abuse and dehumanizing of others under our total control, are never justified.