Simply ask "When you learned of the fact that the society were signed members of the United Nations, how did you come to terms with it?"
Or any one of the hot topics.
Perhaps if they are a parent:
"So when you learned about the scores of child sexual abuse cases that were mishandled, and the millions of dollars being paid out by the society, how did you reconcile this in your mind?"
By doing that, you are already establishing your statement as a FACT, and the only topic is how they handled it. (The reality is, many will not know of those topics, so it will cause mental gymnastics to occur in their minds that they may then go and research later)