BEARING WITNESS IS A STORY ABOUT HOPE, a statement of faith in the human spirit. By dint of circumstance, it is two stories rolled into one. On the one hand, it is the tale of how volunteerism became the most necessary and reliable response to the political problems caused by AIDS and, on the other, it is a chronicle of how the gay community mobilized itself in the service of transformation to contain and resolve the social, psychological, and spiritual...