In this episode of Intelligence Matters, Senator Mark Warner (D-Virginia), vice chairman of the Senate Select Committee on Intelligence, speaks with host Michael Morell about top national security issues facing the intelligence community, the policymakers who oversee it, and the administration within which it operates. Warner shares his views on the responsibilities of currently-serving intelligence officials and the importance of adhering to the rule of law, and explains why the Senate Intelligence Committee’s ongoing investigation into Russia’s interference in the 2016 election might be among the most important efforts of his public life. He tells Morell why his concerns about the strategic threat posed China have multiplied in recent years, and what he believes Silicon Valley – and the U.S. government – need to do to protect themselves against foreign influence campaigns from Russia, China, Iran and others.