By RICARDO CASTILLO     Mexican President Andrés Manuel López Obrador (AMLO) announced on Monday, Feb. 18, that the group of islands off the country’s Pacific coast known as the Islas Marías, which, in the 1940s were transformed from a high-security federal penitentiary into a low-security prison for nonviolent offenders with a minimum two-year sentence, will soon become a cultural center and nature reserve