Henry Spencer wrote:

My understanding is that he's looked at the ITAR rules, and understandably
decided that he wants no part of that nightmare. If that disqualifies
otherwise-interesting foreign suppliers, that's too bad.
In a recent interview, he complained bitterly about the hoops he had to
jump through just to launch Genesis I on a foreign launcher.

see http://cosmiclog.msnbc.msn.com/archive/2006/07/13/1086.aspx