From singer Melissa Etheridge to Olympic champion Greg Louganis, from tennis great Martina Navratilova to the British actor Sir Ian McKellan, celebrities and notables have come forward to put a new face on gay and lesbian sexuality. At the same time, the religious right campaigns to legalize discrimination against gay people and promote an anti-gay prejudice in the general public. The result: cultural attitudes on this topic have never been so polarized--or...