SELinux was released ages ago by the National Security Agency to tighten up security on the popular, open-source operating system. The work set up ACLs around nearly everything in the OS and much to the chagrin of regular users, had a configuration so undocumented and difficult that most people just tend to turn it off. Given the rampant external rooting of Android and malware plaguing app stores, it was only a matter of time before SELinux has been brought to the Android platform. Given the NSA's mandate for securing strategic, national communications, it would seem Android is the government's chosen platform for future federal and military use.