[Tangaroa]

I submitted a better link yesterday: https://news.ycombinator.com/item?id=5859658

It is "better", in that:

1. It goes to the original source, not a blog post giving a five-line summary of another blog post.

2. It is relevant to the acts of which the NSA was recently accused (specifically, the collection of Verizon metadata) and not about some other vague undefined activity that the NSA has already been forced to stop doing.

3. It discusses in detail the Constitutional issues involved and the history of related court rulings.

4. It is the actual US Supreme Court ruling on the subject.