This is a ridiculous argument. Want to know how ridiculous?
What did the US do at that time?
What did we do when while Pol Pot was turning Cambodia into the killing fields?
What did we do during the Rwanda massacre?
What did we do when Hussein was exterminating Kurds?
Is Jimmy Carter a Catholic?
I'm a Catholic and I think the Pope is wrong regarding Iraq. The Vatican is wrong here but there is plenty of wrong to go around.