Drawing on recently declassified documents, John Lehman tells the untold story of the Cold War at sea -- and why it matters today. John's story is also an FPRI story as he got his start here when he was a grad student at UPENN. When he left FPRI, he went on to serve in many high-ranking positions, including Deputy Director of the Arms Control and Disarmament Agency, senior staff member to Henry Kissinger in the White House, Secretary of the Navy, and a member of the 9/11 Commission.