Carlos Hank Gonzales is one of Mexico's most powerful businessmen and politicians. He is a former minister of agriculture, owns a vast business empire and has been an ally of Carlos Salinas.

• FRONTLINE correspondent Lowell Bergman's backgrounder on Carlos Hank and his sons

• Family Portrait

• "The Hank Family of Mexico"- Read a background report and exclusive interview (video) with Carlos Hank by Lowell Bergman.