Please add here sources of data relating to Ferguson, police militarization, etc.:

• https://github.com/TheUpshot/Military-Surplus-Gear
• The information on this wiki is available as data. Check out the LocalWiki API for more info.
• Stats from CensusReporter
• US Census Bureau data
• St. Louis County arrests - not in raw form, but graphed by Washington Post, source St. Louis County Executive's Office. Maybe an enterprising wiki editor could request it and post the raw data in a clean format.