Bush has drawn a blank twice when asked to name any mistakes he has made while president.

CNN: Kerry: Closing loopholes will help fund promises

Diplomatic efforts to effect Mr Taylor's release have so far drawn a blank.

BBC: Wife's hope for kidnapped husband

For years the French investigation into Caroline's murder had drawn a blank.

BBC: NEWS | UK | England | Cornwall | 'Luck' led to Caroline's killer

Los Angeles, California (CNN) -- There was a time when the name Julia Roberts would have drawn a blank stare from movie fans.

CNN: Carey Mulligan braves 'It Girl' status

They have drawn a blank.

BBC: Meriden Gypsy site recommended for council refusal