"You do not examine legislation in light of the benefits it will convey if properly administered, but in light of the wrongs it would do and the harms it would cause if improperly administered."
Lyndon B. Johnson
Experience should teach us to be most on guard to protect liberty when the Government's purposes are beneficent. Men born to freedom are naturally alert to repel invasion of their liberty by evil-minded rulers. The greatest dangers to liberty lurk in insidious encroachment by men of zeal, well-meaning but without understanding.
United States v. Olmstead, 277 U.S. 438, 479 (1925) (Brandeis, J., dissenting)