Secretary of Defense Cohen listens to a reporter's question at NATO Headquarters. Secretary of Defense William S. Cohen listens to a reporter's question during a press briefing at NATO Headquarters on March 7, 1997. Cohen traveled to Brussels to conduct a roundtable discussion with NATO Permanent Representatives. SHARE: Download: Full Size (0.01 MB) Credit: VIRIN: 975958-U-NIY26-373.jpg Photo Gallery