Democracy is at risk in Latin America. The danger goes well beyond Cuba, Nicaragua and Venezuela Donald trump’s administration is not famed for its adherence to highfalutin’ political principle, so John Bolton, the United States national security adviser, struck an unusual note when he claimed in a speech in Miami last month that the “Monroe doctrine is alive and well”. The reference to the 19th-century principle under which the United States arrogated to itself the right to police Latin America…