"Yahoo filed suit in the Foreign Intelligence Surveillance Court (FISC) this morning demanding the right to publicly disclose the number of user data requests that we receive from the U.S. Government under national security statutes."

This is either a first step or a smokescreen, depending on how one looks at it. It's good to know "the number" in order to determine the scope of the problem. It would be better if service providers could actually stop governments from using overly-broad requests to go after user data of indeterminate intelligence-fighting value.