Here is the thing, for these conspiracy theorists to be right, for all these conversations to have been recorded, you'd need the cooperation of at least hundreds of civilians, many not even U.S. citizens.
They'd all need to keep their mouths shut about making changes to accommodate the spooks. Think of the engineers that worked at places like Northern Telecom, Siemens, AT&T, the hundreds (thousands?) of field network engineers, they'd all have to keep their mouths shut.
And if this has been going on for 15 years, they'd all have to keep quiet for the entire duration.
And then you see stories like this:
http://www.washingtonpost.com/blogs/...e-nsa-scandal/
Where the NSA is asking for metadata from Verizon. Why bother? If they already have 80% of the voice, they have the metadata, too.
Lots of exaggerated claims, people love conspiracy theories, but most don't hold up to even mild scrutiny.