
A person always has the right to privacy. To receive certain services, they should never be required to disclose their personal information. Legal matters would be an exception. In that case, a person must disclose their personal information, and their premises are subject to be searched, if the searching party has obtained a proper warrant.
Assuming this was an actual amendment to the constitution, and that it was applied to modern day life, how would it be interpreted? The first key words subject to interpretation are "

All these loose ends in this fictional amendment are exaggerated - all the laws our country was founded on and certainly modern laws are a lot more specific. However, parts of them are still subject to interpretation. All it takes is for one judge to interpret a law a certain way, and then future judges would simply use that case as a reference. This is why modern laws are as long as they are - but alas, there is no way to truly tell at what point the events of the world will fall outside of the law's specifics.