The purpose of the Cuban embargo was to enable the Eisenhower and Kennedy administrations to showcase their stance against evil communism, while the advertised reason was to pressure  the government there to allow democratization and stop human rights abuses. Measured by that stated objective, it has failed.During his historic visit to Cuba this week, President Obama has called upon Congress to lift the U.S. embargo against trade with that country. He has already re-established diplomatic relations as well as approved a resumption of direct airline flights and communication services, including the Internet. Public support for the embargo has declined as recent polls show that a majority of Americans favor lifting it with approval wanin...