On the eve of the G8 summit (taking place in a specially prepared Potemkin village in N. Ireland), the Guardian has published another Edward Snowden leak, this one describing how the UK spying agency GCHQ aggressively spied upon delegates to the G20 summit in 2009. According to the documents, UK spies attacked foreign delegates by "reading their email before they do" intercepting their BlackBerry messages and calls in real-time; capturing logins at special Internet cafes so as to spy on delegations after the event; getting NSA reports on attempts to crack Russian PM Dmitry Medvedev's satellite calls; and continuously logging and analyzing who was calling whom.
The report suggests that British delegation was briefed throughout, and that the operation was "sanctioned in principle at a senior level in the government of the then prime minister, Gordon Brown.
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A briefing paper dated 20 January 2009 records advice given by GCHQ officials to their director, Sir Iain Lobban, who was planning to meet the then foreign secretary, David Miliband. The officials summarised Brown's aims for the meeting of G20 heads of state due to begin on 2 April, which was attempting to deal with the economic aftermath of the 2008 banking crisis. The briefing paper added: "The GCHQ intent is to ensure that intelligence relevant to HMG's desired outcomes for its presidency of the G20 reaches customers at the right time and in a form which allows them to make full use of it." Two documents explicitly refer to the intelligence product being passed to "ministers".