Dear Sir (Test Director): Many thanks to you for your kind information. I have also renewed my passport from D.C. like you did. I have heard about people going in Mexico and stamp the VISA thing. I wasn't informed how did they do that? But, your response gave me some positive feedback. If you happen to know and gather more information please let me know. As you have mentioned to talk with frineds,i am doing so. Let me see, what they have to say in this matter. Wish me good luck, sir. Again, thank you kindly.