Link: https://www.rt.com/news/557276-computer-chips-fbi-ukraine/
FBI and US Department of Commerce launched a probe into claims of American-made computer chips found in Russian military hardware in Ukraine, Government agents visiting companies and asking how their chips and other components ended up in Russian radars, drones, tanks, ground-control and other weapon systems, Before the conflict, basic chips could be sold to Russian buyers without restrictions.,More sophisticated products required exporters to acquire a special license from the US government.