American Ignorance

http://www.vox.com/2014/9/18/6351551/devo-max-scotland

Yglesias seems to think asymmetrical federalism would be a terrible thing for the UK.

In fact, many countries practice asymmetrical federalism for exactly the same reason that the UK might offer that for Scotland: giving large but separate ethnic groups more autonomy for local matters.

But, yeah, it won't be American federalism.  So what?