mpyne and rayiner have hit all the high points, but if you're interested there's more detail here: http://www.forbes.com/sites/quora/2012/07/17/why-does-the-un

mpyne and rayiner have hit all the high points, but if you're interested there's more detail here: http://www.forbes.com/sites/quora/2012/07/17/why-does-the-united-states-only-have-eleven-aircraft-carriers/ http://www.forbes.com/sites/quora/2012/07/17/why-does-the-un...