Amid hundreds of new cars, prototypes and sparkling antiques, the Hummer SUV was the center of attention Sunday for a group of zero-emission supporters at the 47th Annual San Francisco International Auto Show. Carrying signs that read "Dumm and Hummer" and singing songs like "Drive a Hummer, What a Bummer," about 60 demonstrators gathered outside of show at Moscone Center to demonstrate against American dependency on oil. For complete article: http://sfgate.com/cgi-bin/article.cgi?f=/c...BAG7S9VIKS1.DTL
