Ehrm.... No. Japan has only laws for producing child porn. Everything else is fair game, and that is from one of the most powerful economic countries in the world. http://www.yomiuri.co.jp/dy/national/20081130TDY02303.htm

No, straight lines are just simpler for US to understand. Many things in nature, if you take a step back from it, are based on the spiral. It's more complicated, but still ordered.