The US Government system is amazing. There are so many people and positions involed that's it's almost unbelievable. The positions include the executive branch, legislative branch, judicial branch, CIA, FBI, and many federal agencies. The US has a system of checks and balances which, keeps the power of the executive more or less equal to that of the judicial and the legislatative. There are many buildings to hold all these important people. Many in which are highly secured. Keep exploring for more information on the US goverment system.