OK, thanks for the explanation. No I did not understand that. Guess I'm dumb, or ill-informed, or both.
IMO, the collection of metadata is constitutional. IMO, the collection of actual data, collected in bulk, is also constitutional. These are my opinions based on what I've read which I found compelling. Am I 100% positive? Of course not. That's why I wanted the Supreme Court to review the matter. I'm no attorney; let them decide. I don't like that they have, at least so far, refused to do so.
Metadata is a complex thing, especially for non-technical people.
No shame in not understanding it exactly. The truth is, the line between where metadata becomes actual data is pretty damn fuzzy. In a lot of cases, metadata can be more useful information than "actual data". In some cases, really good data analysis people can even recreate the original data just from the metadata.
Moving on, let me ask this. In your opinion, what should the NSA be allowed to do? Specifically...
* Exactly what types of data should they be allowed to search using "automated algorithms" in real-time? Call records? Voice recordings? E-mail records (e.g. who, when, subject)? Actual e-mail contents? U.S. mail metadata records (e.g. date, address, weight, postage, etc.)?
* Exactly what types of data should they be allowed to collect and store for use at a later date?
* In both cases, must it be done to all possible instances of data or none at all? For example, let's just say the government had a way to intercept all Gmail traffic, but wasn't able to intercept Hotmail; should they be able to analyze and store the Gmail stuff?