I don't buy the concept that terrorists don't use common online services. Does anybody actually believe things are safer if you use HushMail et al as your provider? While it's unlikely that the NSA has asked HushMail to FTP up all of its account data as it apparently did with PRISM participants, one would be highly naive to assume that intelligence services have just decided to leave certain providers' data untouched just because they're unwilling to lay out the welcome mat. One would therefore logically conclude that with very basic steganographic measures, it's easier to hide among the hundreds of millions of mails that Google processes each day than the thousands processed by HushMail or other minor email providers (or even a fully-hosted custom mail server at "terrorists-r-us.com").
Furthermore, if you use any cryptography at all besides SSL you're probably already on an NSA list somewhere, but GnuPG alleviates all of these concerns and I'm sure that some terrorist organizations have discovered it. In this case, there should be no issue using Gmail or other services for your communication.
Furthermore, if you use any cryptography at all besides SSL you're probably already on an NSA list somewhere, but GnuPG alleviates all of these concerns and I'm sure that some terrorist organizations have discovered it. In this case, there should be no issue using Gmail or other services for your communication.