One thing they DIDN'T include, but obviously should have, is some stuff to prevent the establishment of a presidential dynasty. The whole point of fighting the Revolutionary War was to get rid of the British monarchical system of inheritance based on blood and/or marriage.
So let's get on this, people! We need a new constitutional amendment that says something like:
You can't be President (or Vice President, for that matter) if your father (or mother, or brother, or sister, or spouse) used to be the President.
Obviously we can't expect the founding fathers to have thought of everything, which is why they designed the constitution in such a way that it could be amended later. (NOTE: This is also why we should have amended all the "right to bear arms" stuff, assuming we don't want that right anymore, instead of just going ahead infringing it all over the place.)
