Homeland security field agents are scouring the social media site Reddit, monitoring the communications of law-abiding Americans critical of the agency. The spying is revealed in a January intelligence bulletin produced by the Border Patrol and leaked to me. Innocuous as this may seem, it is what the intelligence bulletin regards as a threat. By repurposing this battlefield concept, homeland security is treating a Reddit thread like a hostile environment. But the homeland security spies are interested in more than just Budget-Chicken.