Heard it during MLK Day on NPR, was absolutely floored. Also, MLK's comments on the Vietnam War were remarkably prescient, and apply just fine to our terrible wars today. If you still believe that the USG is not, in places and at times, terribly evil and corrupt, you probably don't know about the USG's efforts to kill MLK: http://www.cnn.com/2008/US/03/31/mlk.fbi.conspiracy/
It doesn't sound like they tried to kill him. They tried to prove an alignment with the communist party (and failed miserably). I can't believe the FBI honestly thought a note would drive him to suicide.
Yet another example of our government hating our freedoms.... Oh wait, I thought those were the terrorists....