Jack F. Matlock

President George Bush despatched Ambassador Matlock to the Kremlin to warn Mr. Gorbachev that further violence would affect US-Soviet relations.

https://wikileaks. org/gifiles/docs/40/4056333_-os-2011-149-johnson-s-russia-list-.html

More here: https://www.cia. gov/library/readingroom/search/site/Ambassador%20Matlock

U.S. Ambassador to the Soviet Union from 1987 to 1991.

>>243667

This too Crystal City:

https://twitter.com/ derekpost/status/949016023897919488

>>243581

>[J-Go_dX)-2-8

dX : the Derivative of X

mathematics : the limit of the ratio of the change in a function to the corresponding change in its independent variable as the latter change approaches zero

0, 2, 8, 16 → 1^2 - 1, 2^2 - 2, 3^2 - 1, 4^2 - 2…

a stretch but makes you think…maths