Didn't want to quote everyone. BT posed a topic that many struggle with in terms of changing the interpretation of the Constitution. The Founders were deliberately vague. They designed a skeleton on purpose. They wanted the government to remain flexible. Nothing in the Constitution is inviolate because very little is defined.
Example 1: Article II states: The President must be a natural born citizen of the United States or a citizen at the time of the adoption of the Constitution, at least 35 years old and a resident of the United States for at least 14 years. There is a big problem with this, the term "natural born citizen" is never really defined. Not to start up a bunch of birthers, but the country could possibly elect someone who might not qualify in 2016. Ted Cruz was born in Canada to a Cuban father and American mother. The founders most likely intended to prevent a foreign national from immigrating and claiming the presidency. They would probably be fine with a man born and raised as an American for his entire life. John McCain was born in Panama on a naval base.
Example 2: The 2nd Amendment says: A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed. Our society has seen fit to prohibit a felon, a person convicted of family violence, or a person involuntarily hospitalized in a psychiatric facility from owning a gun. On its face, these prohibitions are uncosntitutional. The government is infringing on a citizens right to own a weapon. I think we can agree that these people for the good of all have forfeited this right. Why cannot I protect my house with a claymore mine? They are easy to use, clearly labelled "this side towards enemy." I would feel more secure with strategically placed claymores. If I own a ranch, I might need a fuel air bomb to protect such a large land area. An Apache helicopter with cluster munitions would really come in handy too. My rights to these arms are clearly being infringed.
Example 3: The 4th Amendment says: The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized. This amendment was written when formal law enforcement was scattered at best. This amendment basically says the police cannot enter your home except by consent or with a warrant. By the letter of the law, I could look in the window of a house and see a grown man sexually assaulting a 3 year old and not be allowed to intervene until I had warrant. Of course this is ridiculous, I am allowed by law to break in the door and shoot the suspect to death ( American police shoot to stop the threat, and killing the person is usually the easiest way to stop the threat) to prevent further injury to the child immediately after observing the act.
We use case law and judiciary interpretation to put the flesh on the skeleton of the Constitution. It is brilliant. The Framers never had to imagine the internet, local police forces, citizens born on foreign military posts that want to be president, etc... Case law allows us to adapt to a changing domestic and international environment. Take gun control, legislative acts will always have limitations because of the second Amendment. If this country truly wants gun control, then 75% of state conventions will have to agree to repeal the 2nd Amendment. If this happens, its not treasonous or anti-freedom. It is the will of the people. I am pretty sure it is a pipe dream in my life too. The point is we can change anything about our Constitution. We can amend it to allow "naturalized" citizens to be president. Then we could have Presinator Schwarzenegger. That is the beauty of our system. Things only remain sacred as long as we collectively as a nation hold them sacred. Whew! That was a lot. I sure can get on a roll.