Really? I see it differently because asking in private later can cause problems. People might not remember the context or feel left out of the loop. I find it's better to get details out in the open when the topic is fresh. That way, everyone hears the same info and misunderstandings are less likely.
Honestly my memory is so bad that if I ask for details later, I'll probably forget what we were even talking about. Troywilliams might have a point though, maybe I just need a better system than my brain.