The NYPD also maintains a "Ring of Steel, " a network of 4, 000 sophisticated security cameras that feed information into a central monitoring system to detect questionable or unlawful activity.
SELinux includes security enhancements to the operating system that can enforce the separation of information based on the confidentiality and integrity requirements.
Yet as UAV technology improves they are set to become an even more important part of security and military operations -- part of a system that gathers and relays information to other drones, ground control, manned aircraft and satellites.
Electronic returns don't have to be entered into the system by hand, and the IRS's computers reject any returns with incorrect basic information such as Social Security numbers, birth dates (even of a child) and married names (they must match what is in Social Security records).