title: Verification and arms control.
abstract: Verification of arms control agreements has become a matter of widespread interest in the scientific community; the methods used by signatories to ensure compliance and the past record of compliance by the United States and the Soviet Union are being vigorously debated. Science has asked two experts in arms control, Manfred Eimer and Sidney Drell, to respond to questions about the means of verification, the current verifiability of agreements, and the future outlook.