LAS VEGAS, June 21 -- The White House Office of the U.S. Trade Representative issued the following remarks by Ambassador Ron Kirk: Good morning. Thank you all very much. It's a pleasure and an honor to be here for the 50th Grand Boul. I want to thank Grand Sire Archon Harris for the invitation to speak on this auspicious occasion as we celebrate over 100 years since the first Grand Boule was convened in Philadelphia. Listening to the speakers and watching the performers this morning,   more