By RICARDO CASTILLO     Mexican senate candidate Nestora Salgado has filed slander and defamation charges against Institutional Revolutionary Party (PRI) presidential candidate José Antonio Meade. During the May 20 presidential debate, Meade said that “criminal kidnapper” Nestora and Miners and Metal Workers’ Union leader Napoleón Gómez were “convicts” who did not have the right to become legislators. Fake news on the part of