“I have went through Secirity advisary option (SAO) two years ago. It took me more than one month to receive the clearance. I know that from this official document https://2001-2009.state.gov/r/pa/prs/ps/2005/42212.htm
(show him printed document with this paragraph highlighted)
"International students (F visas) who have received a Visas Mantis clearance and been issued a visa will benefit from having that clearance be valid for up to the length of the approved academic program, to a maximum of four years. If a student changes academic programs, the clearance will no longer be valid and a Visas Mantis review would be required should the applicant reapply for a new visa."
I haven't change academic program since last time. So could you please continue using this clearance? I do need to go back to US soon for my study, since my supervisor want me to do XX. We cannot afford 1 month waiting here in China.
I know that I may fall into the category of stealing sensitive technology. However, my research is purely theoretical, and do not involve any advanced technology. All our results are post on preprint website arxiv, which everyone can access freely. Here is the letter my supervisor issued to verify this.