June 11, 2008, 6:00 a.m. Obama’s Unofficial Slogan: ‘No, You’re Wrong.’Whatever happened to his ‘pang of shame’? By Jim Geraghty As Barack Obama’s campaign becomes defined by a series of embarrassments — his assessment of what small-town residents cling to, a mentor who believes the government created HIV, a friend of 20 years who takes to the pulpit and demands whites give up 401(k) accounts to atone for their ancestor’s racist sins, a wife who pledges to take away some people’s pie and give it to others, an associate who expresses no regret over planting a bomb in a...