Why not 6 minutes of terror?
If you'd just sunk 10-15 years of your career into the design, funding and building of a space probe - and were unable to know or control the result of the most complicated and dangerous phase - wouldn't you be worried?
Even more importantly, if you've got budget for studying the results the thing produces for the next 2-5 years, and the thing crashes and burns you're out of a job.
Biting the hand that feeds IT
