The Communications Security Establishment of Canada (CSEC), the Canadian version of the NSA tasked with spying on foreigners, has been revealed by Snowden to be busy spying on Canadians too. But what has CSEC been doing?
A redacted version of the PowerPoint presentation that CSEC delivered can be found here. It's difficult to tell what CSEC is doing because the PowerPoint is at a fairly level. This blog post has my initial speculations.