For over a century it has been the settled doctrine of the Supreme Court that the principle of stare decisis has only limited application in constitu… - Robert H. Jackson

Another delicate task is to distinguish between the federal and the local in law-enforcement activities. We must bear in mind that we are concerned only with the prosecution of acts which the congress has made federal offenses. Those acts we should prosecute regardless of local sentiment, regardless of whether it exposes lax local enforcement, regardless of whether it makes or breaks local politicians. [...] In spite of the temptation to divert our power to local conditions where they have become offensive to our sense of decency, the only long-term policy that will save federal justice from being discredited by entanglements with local politics is that it confine itself to strict and impartial enforcement of federal law, letting the chips fall in the community where they may. Just as there should be no permitting of local considerations to stop federal enforcement, so there should be no striving to enlarge our power over local affairs and no use of federal prosecutions to exert an indirect influence that would be unlawful if exerted directly.

The very purpose of the First Amendment is to foreclose public authority from assuming a guardianship of the public mind through regulating the press, speech and religion. In this field, every person must be his own watchman for truth, because the forefathers did not trust any government to separate the true from the false for us.

Had the jury convicted on proper instructions it would be the end of the matter. But juries are not bound by what seems inescapable logic to judges.