“This seems like a warning shot,” said Nathan Sales, the State Department’s counterterrorism coordinator in the Trump administration. “It’s Russia sending a signal that it’s prepared to use terrorist proxies to attack in the West’s rear areas.” https://www.nytimes.com/2023/01/22/us/politics/russia-spain-letter-bombs.html?smid=nytcore-ios-share&referringSource=articleShare