And that was the rise of American Imperialism and the plight of the underclass who suffer from that imperialism, not just in America, but around the world.
From an article by Jeff Cohen at Common Dreams:
http://www.commondreams.org/archive/2008/04/04/8090/-snip-
Back then they denounced King’s critical comments; today they simply silence them.
While noting in passing that King spoke out against the Vietnam War, mainstream reports today rarely acknowledge that he went way beyond Vietnam to decry U.S. militarism in general: “I could never again raise my voice against the violence of the oppressed in the ghettos,” said King in 1967 speeches on foreign policy, “without having first spoken clearly to the greatest purveyor of violence in the world today — my own government.”
In response to these speeches, Newsweek said King was “over his head” and wanted a “race-conscious minority” to dictate U.S. foreign policy. Life magazine described the Nobel Peace Prize winner as a communist pawn who advocated “abject surrender in Vietnam.” The Washington Post couldn’t have been more patronizing: “King has diminished his usefulness to his cause, to his country, and to his people.”
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In 1967, King was also criticizing the economic underpinnings of U.S. foreign policy, railing against “capitalists of the West investing huge sums of money in Asia, Africa and South America, only to take the profits out with no concern for the social betterment of the countries.” Today, capitalists of the West reap huge profits from their domination of global media.
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In 1967, King denounced a Democratic-controlled Congress for fattening the Pentagon budget while cutting anti-poverty programs, declaring: “A nation that continues year after year to spend money on military defense than on programs of social uplift is approaching spiritual death.”