Re: Ive read the US constitution
Article one, section eight has two parts which are key to the argument. These are the fact that Congress has a duty to promote the 'general welfare' along with the power to bring bills containing 'necessary and proper' legislation.
That is where the issues come into play with unenumerated powers, the argument from congress is that the legislation promotes general welfare so is lawful under that power.
As for the fourth amendment, it should be rewritten to take into account the changes that have taken place... surely emails and documents on the computer fall under the 'papers' provision, but does your history not also count? And monitoring of metadata, doesn't that sound like a 'writ of assistance' fishing expedition?