The death toll from small arms dwarfs that of all other weapons systems — and in most years greatly exceeds the toll of the atomic bombs that devastated Hiroshima and Nagasaki. In terms of the carnage they cause, small arms, indeed, could well be described as 'weapons of mass destruction'.
Kofi Atta Annan, United Nations. Dept. of Public Information (2000). “"Wir die Völker" : die Rolle der Vereinten Nationen im 21. Jahrhundert ; [ein neues Jahrhundert - neue Herausforderungen]”, p.52, United Nations Publications