The PRISM slide you're incorrectly referencing shows Skype collection beginning "2/6/11", which in our stupid American short-date format means June 2nd 2011. It's fine if you choose to believe that date has nothing to do with Microsoft's announced-in-May-2011 acquisition of a service that began operation in August 2003, but it's very rude of you to denigrate my completely reasonable observation as a "conspiracy theory". Enjoy your Skype calls :)