Oddly enough, it isn’t mentioned in any of the articles at The Guardian, but the New York Times reports that The Guardian paid for Greenwald’s partner’s trip: Britain Detains Partner of Reporter Tied to Leaks

WASHINGTON — The partner of Glenn Greenwald, the journalist for The Guardian who has been publishing information leaked by the former National Security Agency contractor Edward J. Snowden, was detained for nine hours by the British authorities under a counterterrorism law while on a stop in London’s Heathrow Airport during a trip from Germany to Brazil, Mr. Greenwald said Sunday.

Mr. Greenwald’s partner, David Michael Miranda, 28, is a citizen of Brazil. He had spent the previous week visiting Laura Poitras, a documentary filmmaker who has also been helping to disseminate Mr. Snowden’s leaks, in Berlin, to assist Mr. Greenwald. The trip had been paid for by The Guardian, Mr. Greenwald said, and Mr. Miranda was on his way home to Rio de Janeiro, where they live.