I get that Matthew Yglesias is eager to talk about the revelations regarding the US Government spying on, well, everyone, but for the purposes of this discussion mostly random Americans. And I get that he has to justify it within the remit of his economics/business blog.
But, seriously, does anyone actually believe that the NSA cares in the tiniest bit about making sure that US companies can more convincingly lie that they aren’t participating in the surveillance of their users? PRISM’s secrecy is for the benefit of the NSA, and because the government reflexively makes everything secret that they possibly can. To the extent that lying to people about the security of their data helps the companies involved, it is purely an unintended effect.