The U.S. Model vs. European Democracy
As I understand it, the "federal" system in most countries has a lot of power -- such as a national sales tax, national education system, national health care, national law enforcement, national regulations (versus national "minumums" in the United States), and so on. For example, the GST or VAT is a national sales tax used for national programs. The United States could not have such a tax without a change to our Constitution, which requires approval of three-fourths of the states. (Switzerland has an "easier" two-thirds requirement for national referendums on Constitutional matters.) It was a long battle just to have a federal income tax in the United States. Even today, people debate if the Amendment was passed properly. I also believe a teaching certificate is good nation-wide in most countries. In the United States, my California credential was accepted by two states, as long as I took some additional courses. California accepts no other states...