No Compassion in America?

Everybody from Obama on down has criticized Scotland for releasing the man convicted of bringing down the Pan Am plane in Lockerbie, Scotland. I don’t get it. We, the US, are supposed to be the Christians, following a gospel of love and forgiveness, while the Europeans are supposed to be godless secular humanists. They are releasing this man because of their compassion, and the Americans are screaming to keep him in prison because they are so filled with hatred. I don’t get it. One explanation might be that American Christians embrace the Old Testament, but reject the New Testament, which actually would make them Jews, rather than Christians. How can you accept Jesus and reject the Sermon on the Mount?