Critical Infrastructure Protection protects the nation's Critical Infrastructure. Critical Infrastructure is the networks, systems, and assets that are important to the United States. Its destruction would have a terrible effect on the nation's security and safety.

Examples of critical infrastructure in the United States include transportation systems (such as airports and highways), energy facilities (such as power plants and grids), communication networks (such as the internet and phone systems), and water supply systems. These elements are essential for the functioning of society and the economy.

Centre for Critical Infrastructure Protection was created in 2001.

Marshall Cushing has written:

'Story of our post office' -- subject(s): United States, Postal service, United States. Post Office Dept., History

'The story of our post office' -- subject(s): Postal service, United States Postal Service, History, United States, United States. Post Office Dept, United States. Post Office Dept.

Administrative Office of the United States Courts was created in 1939.