[Privacy] is expected, and protected by the constitution of the United States - you know, that pesky little document you swore to uphold and defend, not mutilate and destroy.
Actually, the constitution doesn't touch on privacy rights, however, the Bill of Rights does reflect some of the spirit of the right to privacy in the sense of freedom of speech (1); privacy of the home (3); privacy from searches and seizure (4); abuse of government authority and due process (V) -- however there is no amendment that specifically states a right to privacy.
I'd agree though that the judicial branch's interpretation of the Bill of Rights is grossly out of whack. While they extend the privacy of the home (3) (specifically worded as 'No Soldier [can] be quartered in any house without consent') as extending to mean 'No agents of the State'; severely restricting law enforcement from entering the home in (nearly) any capacity. Meanwhile they interpret "nor be deprived of life, liberty, or property, without due process of law" as 'we can read your emails, personal conversations, and Netflix recommendations on demand, and if you're doing something we don't like, expect us to bust down the door.'
Moreover, the supreme court ruled in Olmstead v. United States (back in good ol' 1928) that a wiretap violated neither the 4th or 5th amendment; this set the precedent that has turned into the status quo for the government law enforcement branches... Bush then passed the Patriot Act to make us safe from the terrorists. Then the Library of Congress gets to decide that unlocking cell phones isn't allow[comment truncated due to anti-American propaganda]