NSA traffic spies lead to arrest

"an e-mail message intercepted by NSA spies precipitated a massive investigation by intelligence officials in several countries that culminated in the arrest of nine men"

Really good article imo which does prove that the NSA sniffs
emails and communications even though everyone denied it
before.

www.globetechnology.com...

I think most of intelligence agencies are capable of monitoring email.

Of course they do, that's their job. (Along with intercepting other signals)

The internet is the biggest communication device ever, you think they'd just ignore it?