Simple. Send a pen register/trap and trace order to, say, Microsoft for a target's Hotmail traffic (except Subject: lines and body content). I disclosed Micros

Simple. Send a pen register/trap and trace order to, say, Microsoft for a target's Hotmail traffic (except Subject: lines and body content). I disclosed Microsoft's wiretap compliance system in this article last month: http://news.cnet.com/8301-13578_3-57593538-38/how-the-u.s-forces-net-firms-to-cooperate-on-surveillance/ http://news.cnet.com/8301-13578_3-57593538-38/how-the-u.s-fo... If it's Hushmail in Canada, that's why we have MLATs.