What do u.s consulates officials do during the waiting periods of about 15 days for any visa?

Question

In the course of issuing visas to applicants into the u.s what do the copnsular officials do during the waiting periods they talk about?and what exactly is the waitng period for?

Answer 1

They investigate your background

Answer 2

Administrative processing, factual verification, and security checks.  Waiting periods vary by country and work load.