An attempt to attenuate the visa discussion. The Korean Consulate in Washington DC is preparing an official letter intended to clearly state that U.S. citizens do not need a visa to attend the IETF meeting in Seoul. I will forward a graphic of the letter to the IETF Directorate, who has agreed to post on the web. Suggest giving the visa for U.S. citizens issue a rest for four days, time to get the official letter. Note. I can think of no reason to have a letter of invitation unless you need a visa. Gene Gaines gene.gaines@xxxxxxxxxxxxxxx Sterling, Virginia