1.   But Jones says he is confident Delta will make it through the current crisis, and the airline industry will eventually regain passenger confidence, ridership and profits.

2.   But passenger confidence in a remodeled Crossair-Swissair is likely to be directly tied to safety considerations.

3.   Even though the Swiss government guaranteed flights until next March, the sudden grounding caused passenger confidence to plummet.

4.   The ongoing strike also threatens to shake passenger confidence in Lufthansa, which has long enjoyed a reputation for quality service.

5.   Airlines are generally reluctant to comment on incidents involving safety, believing such reports affect passenger confidence.