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COLOGNE, GERMANY - MARCH 26: Carsten Spohr, Chairman of German airline Lufthansa, speaks to the media following the latest developments in the investigation into the crash of Germanwings flight 4U9525 in southern France two days ago on March 26, 2015 in Cologne, Germany. It was reported that only one pilot was in the cockpit at the time of the crash and that the other was locked out and unable to enter and it is being assumed that the plane was deliberately crashed. All 150 people on board, including 72 German citizens, were killed. (Photo by Sascha Steinbach/Getty Images)

COLOGNE, GERMANY - MARCH 26:  Carsten Spohr, Chairman of German airline Lufthansa, speaks to the media following the latest developments in the investigation into the crash of Germanwings flight 4U9525 in southern France two days ago on March 26, 2015 in Cologne, Germany. It was reported that only one pilot was in the cockpit at the time of the crash and that the other was locked out and unable to enter and it is being assumed that the plane was deliberately crashed.  All 150 people on board, including 72 German citizens, were killed. (Photo by Sascha Steinbach/Getty Images)