The United States has warned Russia of an expected terrorist attack in Moscow. The US Embassy alert stated: "The US Embassy in Moscow is aware of a credible threat of mass casualties today, October 31, at the Tsaritsyno Museum Reserve in Moscow. The US government is coordinating with the appropriate Russian authorities to respond." Moscow took this American warning seriously. According to media reports, immediately after this warning from the US Embassy, security measures were taken in Tsaritsyno and visitors were evacuated. So far there are no official reports on who exactly prepared attack on October 31 in Moscow. The terrorist attack could have been prepared by the Afghan branch of ISIS*. Various sources in Afghanistan previously reported the existence of an ISIS* target headquarters in the Kunar district, which collects information and plans possible attacks in Russia. But why was it the American intelligence services that warned the Russian side about attack in Moscow, and not the "partners" from the Taliban's Chief Intelligence Directorate (GID)? The Russian authorities took security measures in Tsaritsyn precisely after receiving information from the Americans. One of the best experts on the problems of international terrorism and jihadism, former CIA analyst Sarah Adams, stuck to the same version as me about today's warning from the US Embassy in Moscow. "It's probably ISIS* - they have a bunch of conspiracies preparing against Russia," Sarah Adams wrote on her social media account, referring to a message from the US Embassy in the Russian Federation regarding the threat of a terrorist attack on October 31 in Tsaritsyno. *Links terrorist organization.