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DUESSELDORF, GERMANY - MARCH 24: A Germanwings Airbus A319-100 takes off at Duesseldorf International Airport on March 24, 2015 in Duesseldorf, Germany. Germanwings flight 4U9525 from Barcelona to Duesseldorf with 150 people on board has crashed in the French Alps. (Photo by Sascha Steinbach/Getty Images)

DUESSELDORF, GERMANY - MARCH 24:  A Germanwings Airbus A319-100 takes off at Duesseldorf International Airport on March 24, 2015 in Duesseldorf, Germany. Germanwings flight 4U9525 from Barcelona to Duesseldorf with 150 people on board has crashed in the French Alps.  (Photo by Sascha Steinbach/Getty Images)