A defining feature of the United States in the 21st century is the level of interconnectivity between persons, corporations, and government agencies. From banking to social media, the vast majority of the American people are online. Using a smartphone it is possible to track weather forecasts collecting data from government-owned satellites, and to check the arrival and departure times of commercial flights using air traffic control networks. This is all possible due to our advanced critical infrastructure and the key systems that control them.