Hi, currently I am working in F1 visa in my OPT status. My F1 visa expired on 2008. I have extended my OPT till Dec 2010 under STEM. I want to travel out of US in January 2010. Is it safe to travel in my OPT status, since I have to appear for the visa interview in the consulate for re stamping my F1 visa, before I can re enter to US?