Magazine editor John L. O’Sullivan first published the term “Manifest Destiny” back in 1845. Simply put, it was the belief that international interests should keep their hands off the Americas because it was our destiny to expand from sea to shining sea. Later, the concept was given teeth when expressed as the Monroe Doctrine. The United States would use all its power, including force of arms, to keep European governments from exerting undue influence in our hemisphere. In recent decades, that policy has seemed dead and buried. The communist takeover of Cuba and planning of insurrections throughout Central and South ...