[detaro]

Note that these boasts from the Secretaries autobiography are also the only source suggesting that this happened.

[joshuajill]

Quoting the Washington Post:

> Portions of the operation have been disclosed earlier, including in a 1996 paper in Studies in Intelligence, a CIA journal.

[throwrqX]

The Wikipedia article quotes V. D. Zakhmatov to say this kind of attack was never possible in the first place because the control systems were either manual or analog, not digital.

https://en.wikipedia.org/wiki/At_the_Abyss

[joshuajill]

He says it wasn't likely because most systems were analogically controlled. Emphasis in most.