In 1976 George HW Bush declared that the CIA wouldn't manipulate the media anymore but this NYT article from a couple months later shows the feds backpedaling on that promise, along with some specific examples of media manipulation from the time:
http://www.nytimes.com/1976/04/27/archives/cia-will-keep-mor...
I haven't found any evidence of post-Cold War media manipulation of this sort, but I don't think American trust in the media has ever fully recovered since those days.
It's likely that the state agencies have learned to better avoid the exposure of these sorts of programs.
Regardless, The Intercept has more than a few stories[0], and Chomsky has shared his opinion[1]. Then there's the small matter of this[2]. And on and on; much of it is hard to verify, like Eglin Air Force base and its Reddit links.
Spreading propaganda is not the same as cooperation with the TLAs. If you read Chomsky in detail, he is describing exactly how this works, and it does not involve spies telling the NYT what to write. It's a lot more gentle.
Seriously, if you're so keen to criticize the western media you might as well do it right. Chomsky wrote several books (E.g. Understanding Power) documenting and detailing how it works.
Now, back to where we started. Where is your evidence specifically for "The New York Times has a long history of cooperating with three-letter agencies"?
In 1976 George HW Bush declared that the CIA wouldn't manipulate the media anymore but this NYT article from a couple months later shows the feds backpedaling on that promise, along with some specific examples of media manipulation from the time: http://www.nytimes.com/1976/04/27/archives/cia-will-keep-mor...
I haven't found any evidence of post-Cold War media manipulation of this sort, but I don't think American trust in the media has ever fully recovered since those days.