On September 17, 2019, the Department of Treasury (“Treasury”) released for public comment two proposed rules (the “Proposed Rules”) implementing the Foreign Investment Risk Review Modernization Act (“FIRRMA”) enacted in August 2018. FIRRMA expanded the jurisdiction of the Committee on Foreign Investment in the United States (“CFIUS”) and granted CFIUS new tools to regulate foreign investments raising national security concerns. Our previous analysis of FIRRMA is available here, and our analysis of the “critical technologies”…