It is true that their hiring process may be far from optimal. But IMO it's also fair to ask algo related questions by throwing in constraints and see how the candidate reacts.
15 karma · joined November 23, 2007
Both seem to claim they are the only one who flew both missions though, I can't tell if they are correct.
[Edit: Changed the link to a wordpress site for easier reading.]
I have translated this essay to Traditional Chinese version at here: http://mclee.foolme.net/2007/11/blog-post_21.html
In case if you feel that is inappropriate, please let me know. :)