Christopher Conover speaks to a specialist in bariatric surgery about how this type of operation can help some diabetics reduce their sugar levels dramatically. Caitlin Harrington meets with two volunteers with TIHAN to discuss the work they do in the community for people with HIV/AIDS. Tony Paniagua interviews two representatives of the Arizona-Sonora Desert Museum about their upcoming 60th anniversary. Gisela Telis brings us the story of hummingbirds and their role in providing clues about climate change.