It's not just the cloud
It's also your phone company, your internet provider, your bank, your suppliers, your customers, et effing cetera.
As Microsoft is pointing out, it has become absurdly easy for the government, at all levels, to get a warrant to see your data to slap on a secrecy provision. And Turley points out that there is even less oversight with a subpoena.
Big Brother can watch whatever it wants whenever it wants to.