Indeed, Viviane Reding, the EU's justice commissioner, has, in the words of the New York Times, "demanded in unusually sharp terms that the United States reveal what its intelligence is doing with personal information of Europeans gathered under the Prism surveillance program revealed last week." She is particularly insistent that EU citizens be given some way to find out whether their communications were intercepted by the NSA.
In the wake of the Guardian's articles, I heard from journalists and even government officials from around the world interested in learning the extent of the NSA's secret spying on the communications of their citizens. These stories have resonated globally, and will continue to do so, because the NSA's spying apparatus is designed to target the shared instruments used by human beings around the world to communicate with one another.
The purpose of whistleblowing is to expose secret and wrongful acts by those in power in order to enable reform. A key purpose of journalism is to provide an adversarial check on those who wield the greatest power by shining a light on what they do in the dark, and informing the public about those acts. Both purposes have been significantly advanced by the revelations thus far.