BIG Blue, Mickey Mouse and Scarlett O'Hara found themselves at the centre of a selling frenzy on Wall Street which dropped markets to their lowest levels since November. The Dow Jones Industrial Average, which has been whip-sawed lately between bookkeeping jitters and hopes for a resurgent US economy, plunged 157.90 points or 1.59% to 9,745.14. The Nasdaq Index, which started the day down 7.4% on the year so far, tumbled another 54.59 points or 3% to 1,750.61.