Here’s the standard procedure widely used by terrorists to communicate via email. They open an email account with any free service. Then, they create the message and store it as a draft. Another operative, perhaps a continent away goes into this account on a pre-determined basis and reads and deletes the saved (unsent) message. That way the sender knows it was delivered. Since they never actually sent a message nobody can intercept it unless they somehow locate the account and break the password. (Very unlikely.)
So, spying on emails has probably been an unprofitable affair as far as tracking terrorist.
There are also several unbreakable encryption algorithms that can be downloaded by anyone.
Another method used for centuries is to take two identical but obscure books. They then put down something like 10,474,88,235 etc. That’s look on page 10 for word 474. Look on page 88 for word 235. Again, unless you know what book you’re SOL.
So, again, why is the NSA spying on emails?
Because Americans are the most evil people to inhabit the planet ever.
Ask any liberal.
They want to know who is armed and who is anti-commie. Or they might be overage peeping toms. I would never take a job of spying on my neighbors, only the lowest of the low would do such work. We need to set up a website listing names and addresses of these folks and make it as public as possible. I know 2 undercover IRS agents. Create the site and I will provide the names.
So, again, why is the NSA spying on emails?>>>>>>>>>>>>>>>>>>>>>>>>>
Obama is defining his political enemies and how to disempower them, and out vote them.The spying takes the measure of the anti Obama demographic, so it can be defeated.
Boxcars and showers ring a bell?