Which of the following have dominated the discussion of weapons proliferation in the past?
A. Chemical weapons
B. Nuclear weapons
C. Biological weapons
D. Ballistic missiles
E. Advanced conventional weapons systems
Question 2
ALL BUT WHICH of the following are measures used to verify compliance with arms control treaties?
A. Open admission of violations by states
B. On-site inspections by third parties
C. Reports by human-intelligence sources
D. Covert infiltration of suspected weapons sites
E. National technical means
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