[redthrowaway]

Link to said letter?

[waitwhat]

I was curious enough about this that I looked into it...

There's an excerpt on his wikipedia page http://en.wikipedia.org/wiki/Martin_Luther_King,_Jr. then search the text for "anonymous", and an image of it at http://www.oilempire.us/cointelpro.html

TIME magazine also mentioned the letter in 1975 at http://www.time.com/time/magazine/article/0,9171,913763,00.h...

[18pfsmt]

I got curious as well, and your post helped. Just to point more clearly to the source, the cited reference comes from:

Title: "Judgment Days: Lyndon Baines Johnson, Martin Luther King, Jr., and the Laws that Changed America"

Author: Kotz, Nick

Publisher: Houghton Mifflin (2005). p. 247.

Access it here: http://books.google.com/?id=qo9r4_rnrasC&pg=PA247

[Looking at this URL again, is this an affiliate URL?]

[waitwhat]

[looks like a book id and page number to me]