Re: The system is broken
It's nice that you feel that way, but let's take a look what it actually 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.
The key phrase in here is "...no Warrants shall issue, but upon probable cause, supported by Oath or affirmation..." Now we've grown accustomed to a certain process in common law where we get to see the warrants and the claims made in the warrant. But that doesn't actually prevent Congress from making explicit laws regarding how some warrants are issued for a particular set of codified offenses. Which is what Congress did with the various laws usually lumped under Patriot Act. They've specified what constitutes probable cause, someone is affirming the accusation, and a court consisting of Presidential appointees who are approved by Congress is overseeing it. The only difference between it and another court is that because it deals with national security, Congress has deemed it appropriate to keep the proceedings secret. From a purely legal standpoint where you can't assume guilt, it therefore conforms to the law. From a practical standpoint it can be corrupt as all hell. That doesn't change the legality of it.