Regular checks and we also have a medical check once per year. there are no more psychological checks. but when trainings are carried out, leadership is checked. for instance, and the training is such that if there is an incapacity of the captain the copilot can actually lead and manage the flight and the airplane and is competent to do so and especially prepare for this. but the special psychological test is not provided for at a european level. bill: a little bit of new information. that s the ceo of lufthansa airlines. they own germanwings. we ll speak with a former ntsb ....