By Danny Ramos and Aislinn Laing LA PAZ (Reuters) - A former Bolivian interior minister known as "Minister for Cocaine" for his role in turning the impoverished nation into a narco-state during a military dictatorship in the 1980s has died after decades in prison, local media said on Tuesday, citing a Bolivian government minister. Luis Arce Gomez, reported by local media to be 82, was interior minister in the Andean nation's 1980-81 dictatorship of General Luis Garcia Meza.