United}States§cnatc WASHINGTON, DC 20510 November 18, 2019 Mr. Robert O’ Brien Assistant to the President for National Security Affairs The White House 1600PennsylvaniaAvenue, NW WashingtonDC, 20006 Dear Mr. O’Brien, Several leaderswithin the Executive Branch recently briefed the bipartisan leadership of the SenateSelect Committee on Intelligence, the SenateCommittee on Homeland Security and Governmental Affairs, the SenateForeign Relations Committee, and the SenateArmed Services Committee on the United States’ efforts to develop and deploy fifth generation (5G) telecommunicationstechnologies. As you may be aware, the United Statesand its allies are facing an unprecedented security challenge with the current marketplace of 5G technologies. While the United Stateshas led in the development and deployment of previous telecommunications evolutions, 5G representsthe first evolutionary step for which an authoritarian nation leads the marketplace for telecommunications solutions. China’s leadership, combined with the United States’ increased reliance on high-speed, reliable telecommunications services to facilitate both commerce and defense,poses a strategic risk for the country. We cannot rely exclusively on defensive measuresto solve or mitigate the issue, but rather we must shapethe future of advanced telecommunications technology by supporting domestic innovation through meaningfbl investments, leveraging existing areas of U.S. strength, and bringing together like-minded allies and private sector expertise through a sustainedeffort over the course of decades,not months. A challenge of this magnitude requires a more ambitious responsethan traditional agency processes can support. While we appreciate the progress being made within and across departments and agencies,we are concerned that their respective approaches are not informed by a coherent national strategy. In our view, the current national level approach to 5G is comprised of a dispersedcoalition of common concern, rather than a coordinated, interagency activity. Without a national strategy, facilitated by a common understanding of the geopolitical and technical impact of 5G and future telecommunications advancements,we expect each agency will continue to operate within its own mandate,rather than identifying national authority and policy deficiencies that do not neatly fall into a single department or agency. This fractured approach will not be sufficient to rise to the challenge the country faces. We hope that you, as the new National Security Adviser, will make this issue a top priority. We would further urge you to designatea dedicated,senior individual focusedsolely on coordinating and leading the nation’s effort to develop and deploy future telecommunications technologies. We believe that having a senior leaderwould position the United Statesto lead on telecommunications advancements, ensure the United Statesis appropriately postured against this strategic threat, and demonstrate to our allies the seriousness with which the nation considers the issue. We look forward to working with you as we consider additional authorities and resources necessaryto addressan issue of this importance. We hope that you and your designatedlead on 5G issueswill continue to engagein a serious and frank dialogue with Congressabout what is required to address this challenge. Sincerely, MoI e Vu,, Richard Burr Chairman Select Committee on Intelligence Mark R. Warner Vice Chairman Select Committee on Intelligence Gary #,t,r, RankiLg Member Committee on Homeland Security and GovernmentalAffairs JamesRisch Chairman Foreign Relations Committee Robert Menehez Ranking Member Foreign Relations Committee g JamesInhofe Chairman Armed Services Committee Jack Reed Ranking Member Armed ServicesCommittee cc: Mr. Lawrence Kudlow, Director of the National Economic Council