Lexington (AP) -- President Bush's nominee for surgeon general, Kentucky cardiologist Dr. James Holsinger, has come under fire from gay rights groups for voting to expel a lesbian pastor from the United Methodist Church and writing in 1991 that gay sex is unnatural and unhealthy. Also, Holsinger helped found a Methodist congregation that, according to gay rights activists, believes homosexuality is a matter of choice and can be "cured." "He has a pretty clear bias against gays and lesbians," said Christina Gilgor, director of the Kentucky Fairness Alliance, a gay rights group. "This ideology flies in the face of current...