They worked with the FBI not the NSA. Plausible denial and all that.
They can help implement PRISM for the government without being told what PRISM is. When asked if they are participating in PRISM, they can deny knowledge of it existing. Because it's technically true.
They can help implement PRISM for the government without being told what PRISM is. When asked if they are participating in PRISM, they can deny knowledge of it existing. Because it's technically true.