History

Hi I'm not going to lie I'm not going to give you too much to go on (sorry) but a couple of years of ago I remember learning about a US Bureaucrat the served somewhere between the Kennedy and Nixon administrations who was unique in his generally sympathetic views to nations like the USSR, China and Vietnam and only became more sympathetic to their interests as he grew older and may have even spoken at the UN expressing opposition to US foreign policy in his retirement. I believe he died in the 21st century but I could be wrong on that. I also remember something about him being essentially ousted prematurely by President (Perhaps by Nixon or Lyndon B Johnson?) but that may be a red herring. I figured the people in this community have the esoteric knowledge to divine something out of thin air. Thanks