The Intercept journalist was assaulted by right-wing commentator Augusto Nunes during a live-streamed debate on a Brazilian radio station.
Brazil's Justice Minister Sergio Moro laments what he called the "criminal invasion" of the phones of several prosecutors involved in a sprawling anti-graft probe that has put dozens of top politicians and businessmen behind bars.
The move is seen as one of the first concrete efforts by the Trump administration to crack down on leaks to the media.
A news site which was part of the team that first interviewed Snowden in 2013, announced that it would invite foreign media to work with it to explore the full archive.
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