An engrossing, and disturbing, data visualization of arms imports and exports, done by a research lab at Google. Use Chrome.
From the FAQ:
The mapping arms data (MAD) visualization of small arms, light weapons and ammunition transfers was produced by Google as part of the Google Ideas INFO (Illicit Networks, Forces in Opposition) Summit with support from the Igarape Institute and data provided by the Peace Research Institute Oslo (PRIO) small arms database.
It seems like the year-over-year data is normalized as relative percentage change.
This presentation, I assume unintentionally, recalls the way “Star Wars,” the space-based “Strategic Defense Initiative” proposed during the Reagan years, was depicted.
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A Few Reasonable Words 