By Jim Wyss, Miami Herald (TNS) PUERTO MALDONADO, Peru — For more than a decade, authorities turned a blind eye to the sprawling illegal gold mine in southeastern Peru that had become a national embarrassment but fueled the local economy. The area, known as La Pampa, stretches across 40 square miles of what used to be old-growth Amazon forest. Now it’s a desertlike wasteland, gouged with toxic mud