Is the U. S. Constitution Outdated?

Constitution in plain English - No Interpretation Necessary

I certainly don't think we need a "new" Constitution, but I do think we need some concerned citizens and a few decent law makers who understand the one we already have and will stand up and defend it.
There are several different Oaths which our Constitution or other U. S. law requires in different situations. I would like for us to take a look at some of these Oaths:

Oath of Citizenship

"I hereby declare, on oath, that I absolutely and entirely renounce and abjure all allegiance and fidelity to any foreign prince, potentate, state, or sovereignty of whom or which I have heretofore been a subject or citizen; that I will support and defend the Constitution and laws of the United States of America against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I will bear arms on behalf of the United States when required by the law; that I will perform noncombatant service in the Armed Forces of the United States when required by the law; that I will perform work of national importance under civilian direction when required by the law; and that I take this obligation freely without any mental reservation or purpose of evasion; so help me God."