could there be a case where the parties in a conversation are legitimate suspects? in such a case, why does it matter if it's Microsoft or some other private company that the NSA hires to break encryption?
it seems that the article is presenting the Microsoft / NSA relationship, and later states “If you look at what happened when Bush, Cheney and General Hayden – who was head of the NSA at the time – deliberately violated the law to eavesdrop on Americans without a warrant" which hints at a vague conclusion that Microsoft is helping to spy on citizens without a warrant.
possibly i missed something, so is the point that Microsoft (or any private company) should not do any work for NSA, or that it should not do it without a warrant, or that we can't trust it with anything because it did some work for the NSA? Or is that the details are still not disclosed so it's pure speculation?