SAN DIEGO — The National Association of Hispanic Journalists is getting good at producing embarrassing headlines. Last year, at the NAHJ’s conference in Anaheim, Calif., the organization’s leaders rolled over and allowed one of the panelists — John Perez, then the Democratic speaker of the California Assembly — to exclude Republican political consultant Hector Barajas. Last week, as the NAHJ met in San Antonio, 84-year-old Charlie Ericksen, one of the group’s co-founders, kicked up some dust when he said it was “kind of a farce” for the organization to honor Fox News with an NAHJ Media Award.