MEXICO CITY - The Mexican government is satisfied with the United States' promise to conduct a thorough investigation of the events surrounding the shooting death of a Mexican migrant allegedly by a U.S. Border Patrol agent, President Vicente Fox's spokesman said Friday. "Secretary of State Condoleezza Rice spoke with the Mexican foreign secretary to guarantee that there will be an independent investigation and that they will take the appropriate actions," Ruben Aguilar said. "This seems to us to be an adequate attitude." On Thursday, Mexican Foreign Relations Secretary Luis Ernesto Derbez said that he and Interior Secretary Carlos Abascal had...