In the forests of the Chapare region of Bolivia, Evo Morales observes — and waits. From his rural reduct in a secretive place, the former president and historical leader of the left continues to be a powerful political force while 50 days of roadblocks, promoted by trade unions and indigenous groups, paralyzed the country, left at least 14 dead and led Rodrigo Paz's central-right government to the brink of collapse. In an exclusive interview wit…