p.s.
i still think it was pretty darned wise and dedicated of stefanib to seek the facts from the sources.
i appreciated the response from AE Nathan. also found it amusing.
we heard from Kaufman quite some time ago. they also confirmed that they do not sell anything but their best stuff - regardless of who's buying it.
i hope she hears from others and that she will share those responses.
is there life on Mars? i'm pretty sure knowing wouldn't change my travel plans. however, i'm still fascinated by the question and am very interested in the clues they're gathering in trying to find the answer.