 No one's immune from misinformation, but if you want the facts, then you're in the right place. What is true? News Radio 1100, KNZZ. The Roman Catholic does not excuse slavery in any context, but put it in context, as he's done in this column. Go to catholicleague.org and you can read the whole situation. And America and Western Europe did everything in its power to stop the nasty institution of slavery.