Today is the 20th anniversary of World AIDS Day. Among the many groups struggling to slow the spread of the virus are Latinos. In Los Angeles County, they make up almost half of newly diagnosed HIV/AIDS cases. Also in this episode: part of tightening security in the U.S. has been a new requirement that Americans show a passport when crossing into Mexico. David Hernandez lives near the border. He was born in Texas, served in the military, and he's voted. But when he applied for a passport, he was denied.