I think that the American perception of its policies are so badly manipulated that items like the PA are NECESSARY.
We needed something that clearly states that domestic terrorists will be pursued. Terrorism is generational, thus, there are people here that could be "American Citizens" yet are planning to do harm to the country.
You can all start in and start hemming and hawing...but your rhetoric doesn't change a damn thing: We still have the highest degree of freedom, liberty, and safety in the world. And, so many of you here can still grow your weed in peace, even if the govt may even be able to bust you because they already know who you are and what you are doing. But they don't, because the reality is that it's just not worth it - there are REAL terrorists out there, and they want to find them, not fuck with paranoid stoners.