This is kind of a big deal. The power of protest, done right, is clearly evident, and the efforts of the Sioux Nation to bring together a variety of supporters is laudable. 
It's truly a David and Goliath moment--and Goliath didn't have to die.
No matter which side of the issue you're on, Standing Rock should be noted as a fine display of our most dearly held constitutional foundation: The First Amendment.