"We won't stand for tyranny, oh king." -- TJ and the Revo "Too Late to Apologize: A Declaration"
First of all, it is not a birth certificate, and secondly it is not valid.
I'm talking about Obama's "green" altered COLB (Certificate Of Live Birth), that everyone from Fox's Bill O'Reilly, to CNN's Anderson Cooper, to White House Press Secretary Robert Gibbs, have been pointing to as "proof" that Obama is a Natural citizen of the United States, and therefore eligible to be POTUS. Link