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People hold a banner reading "thank you Antoine" as they demonstrate outside the courthouse in Luxembourg, on April 26, 2016, in support of whistle-blower Antoine Deltour, during his trial over the so-called LuxLeaks scandal that exposed the country's huge tax breaks for major international companies, with the issue riding high after the recent Panama Papers revelations. Antoine Deltour and Raphael Halet, two former employees at services firm ricewaterhouseCoopers (PwC), and French journalist Edouard Perrin face charges over the theft of thousands of confidential files in the so-called LuxLeaks scandal. Around 50 supporters shouted "Thank you, Antoine, thank you Antoine!" as the defendants arrived at the courtroom in Luxembourg for the start of the trial, which is expected to last until May 4. / AFP / JOHN THYS (Photo credit should read JOHN THYS/AFP/Getty Images)

People hold a banner reading "thank you Antoine" as they demonstrate outside the courthouse in Luxembourg, on April 26, 2016, in support of whistle-blower Antoine Deltour, during his trial over the so-called LuxLeaks scandal that exposed the country's huge tax breaks for major international companies, with the issue riding high after the recent Panama Papers revelations.
Antoine Deltour and Raphael Halet, two former employees at services firm  ricewaterhouseCoopers (PwC), and French journalist Edouard Perrin face charges over the theft of thousands of confidential files in the so-called LuxLeaks scandal. Around 50 supporters shouted "Thank you, Antoine, thank you Antoine!" as the defendants arrived at the courtroom in Luxembourg for the start of the trial, which is expected to last until May 4.  / AFP / JOHN THYS        (Photo credit should read JOHN THYS/AFP/Getty Images)