Thank you so much for your kind suggestion. My boss made me work like crazy yesterday, so I did not have a chance to check this site. Now I see so many nice suggestions. It is really heart warming.
Can you please E-mail me how those 4 pages explained that LC will adversely affect National interest in your letter? The denial letter agreed that my work is significant. But they think I can still work on those projects with a H1B visa and go through LC process.
Thank you very much for your help. My E-mail is Gaiyun1@yahoo.com