LOS ANGELES (Reuters) - Eva Longoria is annoyed. The Latina beauty on hit television show "Desperate Housewives" is bugged by all the newspaper, magazine and Web gossip about her sex life when there are more important issues to think about. She is as comfortable talking about U.S. immigration policy and the plight of migrant farm workers as she is having her bikini-clad body on a mega-sized magazine cover spread out in the Nevada desert so that it can be seen from outer space. Longoria, 31, is a beauty, but her brain is big, too and she wants folks to know...