I listened to the first half hour where Romney stood up and did a Q&A and they didn't mention Bain AFAIK.

I could be wrong. I only watched the main speech. I stopped watching the 2nd video when Romney sits down and you just hear background chatter. It's likely that it's in that part of the video.

How can he refuse to answer? The media must make him answer yes or no. Avoidance on this issue is not acceptable.

If silence is his answer, we should take that as an admission of guilt.

I mean - he really bought that story about the guard towers? He assumed everyone in the room had seen those factories?