Autumn Rhythm No. 30 by Jackson Pollock, 1950
Okay, well, not an actual weapon, but as propaganda. This is a really interested article I found yesterday that talks about the CIA using modern art during the Cold War with the Soviet Union. It’s a long read, but I found it really interesting. The article is by Frances Stonor Saunders. Follow the link here to read: http://www.independent.co.uk/news/world/modern-art-was-cia-weapon-1578808.html