In a lot of ways, Trinidad, Colorado isn't so different from other small towns. They've got a population of 9,000, the local economy is transitioning away from once-prosperous mining and ranching, and Christ is Lord. But Trinidad, like many of its visitors, has a little something extra: Over the past forty years, six thousand people have traveled there to undergo sex-change operations. Dr. Stanley Biber secretly began performing genital-reassignment surgery, or GRS, in 1969, hiding......