There have been many occurrences of states rights being used for good, for instance: http://en.wikipedia.org/wiki/Fugitive_Slave_Act_of_1850#Nullification http:

There have been many occurrences of states rights being used for good, for instance: http://en.wikipedia.org/wiki/Fugitive_Slave_Act_of_1850#Nullification http://en.wikipedia.org/wiki/Fugitive_Slave_Act_of_1850#Null... Or more recently medical marijuana, and in general drug legalization efforts rely on states rights argumentation.