probably wanted to keep out some of the folks seen on townhall and tea party footage, which is understandable when trying to foster a productive session. its seemed to me that local people were represented and they voiced real concerns, at times Obama got pressed pretty good. he got hit with a couple hard questions that he was not prepared for (rising domestic violence rate after Katrina), while other times it almost felt like a talk radio show where you arent sure what the caller is saying. it was a less scripted format than one would typically expect
it may have come across that way, but you know his staff got to review all questions asked.