Soviets attempted to repeat this in the 80s when passive eavesdropping devices were embedded into concrete slabs and columns used in a construction of new US embassy and supplied by local contractors [1].
From what I remember the case lingered well into Perestroika period when complete documentation on this project was passed to the Americans as a gesture of "goodwill and friendship", presumably in exchange for chicken leg imports (aka "Bush legs") and other Western luxuries.
From what I remember the case lingered well into Perestroika period when complete documentation on this project was passed to the Americans as a gesture of "goodwill and friendship", presumably in exchange for chicken leg imports (aka "Bush legs") and other Western luxuries.
[1] https://www.nytimes.com/1988/11/15/world/the-bugged-embassy-...