The revelation that co-pilot Andreas Lubitz had been diagnosed with a mental illness before he crashed the Germanwings jetliner Tuesday raises concerns over how airlines screen pilots for mental health issues.
The copilot flew the Germanwings Flight 4U9525 into the mountains after the pilot was deliberately locked out of the cockpit. The security measures put in place to stop 9/11-style hijackings may have been the fatal flaw that prevented the other pilot from regaining control.
Following the crash of Germanwings flight 4U9525, some of the carrier's crews and pilots have refused to fly, and caused more than two dozen of flights to be canceled across Europe.
These airports are among the most expensive to fly through in the world, mainly thanks to high landing fees.
Tuesday’s Germanwings Airbus crash, which authorities say was fatal to all 150 people aboard the aircraft, highlights the question of safety in the skies.