Michael Casey is Director of the National Counterintelligence and Security Center, the part of the Director of National Intelligence that leads and supports the counterintelligence and security activities of the U.S. Government. NCSC produces the National Counterintelligence Strategy of the United States and includes the National Insider Threat Task Force. NCSC also plays a critical role in conducting outreach to the private sector on foreign intelligence threats: how to recognize them and how to mitigate them. I spoke with him recently from NCSC headquarters in McLean, Virginia about the risks that spies are posing to their enterprises and to future U.S. national security.