TALLAHASSEE — As he positions himself to the center in the U.S. Senate race, Gov. Charlie Crist on Friday vetoed a measure requiring most women to pay for an ultrasound and hear a description of the fetus before they can have an abortion. "This bill places an inappropriate burden on woman seeking to terminate a pregnancy," Crist said in his veto message. Anti-abortion advocates and Crist's Republican critics in the Legislature immediately pounced on the decision. John Stemberger, head of the Florida Family Policy Council, called the veto "profoundly disappointing" and said it's now "crystal clear that he's pro-abortion."