There was no cone of silence - period. McCain wasn't even in the building yet when this was announced at the outset of Obama's interview.
"Pastor Rick" has just admitted this on CNN. CNN reports they know McCain was still in his motorcade on the way to Saddleback when the Obama segment began.
Is there already a diary on this? I searched to no avail - I'm not sure if I'm watching a live CNN interview with this "Pastor Rick" or not. If this is old news, I'm shocked this hasn't been jumped on. There were comments galore about suspicions McCain knew the questions in advance, but this interview confirms that he absolutely had the questions - and apparently Obama's answers, as well. (I don't really think he leaned forward to tap the driver on the shoulder to ask him to turn the limo's radio off so he could play fair and not hear the Obama segment of the broadcast.)
So has this been diaried?