The United States recently warned Russia of a possible attack in Tsaritsyno. This is not the first time that the intelligence services of the two countries have interacted. On October 31, the US Embassy in Moscow announced on its website that a terrorist attack might occur in the Tsaritsyno Museum Reserve. The Russian FSB confirmed that it had received a warning from the United States, after which the museum reserve was closed "for technical reasons". The terrorist attack did not happen; The next day, the FSB announced the arrest of the boy from whom the information about the preparation of the attack came. This is not the first time that the United States has passed on information it has about potential terrorist attacks on Russian territory to the Russian authorities. Below are three of the most elegant cases. Open with VPN | No VPN.