Categorically false? My goodness, such strong language, such ... certainty.
Prove it.
http://www.freerepublic.com/focus/f-news/2003879/posts
No mention.
And you would think the cfr’s Pakistan/US time line would include something but it says 1981 was a good years for relations.
http://www.cfr.org/publication/15260/
But hey if you think it’s true run with it I guess, maybe others won’t bother checking to see if it is true.