Machine "reading" the email to glean useful advertising data != machine "reading" the email to find any excuse to label you a terrorist.

> machine "reading" the email to find any excuse to label you a terrorist

Is there any evidence at all that this is happening? So far They don't need to do that, they use corrupt informants (Guantanomo) or stupid videos on YouTube (US teen "rappers").

Yes, there is. [1]

[1] http://www.washingtonpost.com/blogs/the-switch/wp/2013/08/05...