The level of secrecy is particularly interesting this year, as one of the topics up for discussion is: "does privacy exist?". On this issue, the thoughts of the former director of the National Security Agency, Keith Alexander, and the head of the U.K.'s Secret Intelligence Service - or MI6 - John Sawers, are likely to be highly sought after.
Big business names at this year's event include Klaus Kleinfeld, chairman and CEO of Alcoa, Reid Hoffman, co-founder and executive chairman of LinkedIn, and BP CEO Bob Dudley. From the world of finance, HSBC Chairman Douglas Flint and Chairman and CEO of Lazard, Kenneth M. Jacobs, will be in attendance.
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Around a third of the guests at the Bilderberg conference – originally designed to foster dialogue between Europe and North America – are politicians. Those due to attend this year include U.K. Chancellor George Osborne, Britain's Shadow Chancellor Ed Balls, and German Labor Minister Jörg Asmussen.
Perhaps unsurprisingly, given the top-caliber guests in attendance, even the royals can't stay away, with the Queen of Spain and Princess Beatrix of the Netherlands also expected to make an appearance at this year's gathering.