President Barack Obama's campaign is screening comments to its much-criticized ad mocking Mitt Romney's pledge to cut subsidies to PBS.
On YouTube, the ad, which has been widely panned as an ineffective counterpunch to Romney's debate victory last week, features a disclaimer that "comments may be held for uploader approval."
More than 24 hours after the ad's release, none have been approved.
An Obama campaign official said in a statement:
"Comments are screened, as quickly as possible, for threats and profanity. Any comment that doesn’t include one of those two factors is posted, including critical comments. You should be able to see these posted on similar videos from the past couple weeks."