LA PAZ, Bolivia (Reuters) - Tourists and political pilgrims can now follow "Che's trail" in Bolivia, which traces Ernesto Guevara's fatal attempt to export the Cuban revolution to one of Latin America's poorest countries. Authorities opened the trail on Monday, allowing visitors to travel the same route through Bolivian villages and remote countryside that Guevara's small band of revolutionaries took before they were defeated by the Bolivian army. The opening of the trail coincides with the release of "The Motorcycle Diaries," a critically acclaimed film that depicts a young Guevara on his motorbike trip through Argentina, Chile and Peru. Guevara,...