808ikea, I did not say vetting begins on Inauguration day.  I said that was the first day the incoming administration would have access to FBI, CIA and other government documents that might have contained unfavorable information about Flynn.  Transition teams typically start vetting long before elections are held using public sources, but they would not have access to classified or sensitive FBI, CIA or other government documents.  Following elections, the process begins for obtaining security clearances for those needing them, which is when the FBI gets involved in background investigations.  In Flynn’s case, such was not necessary because he was vetted by the Obama administration for the highest level of security clearances which was still valid when he became National Security Advisor.  If the FBI, CIA, NSA or other government agency had any recent dirt on him, they should have made it known to the Trump transition team before he assumed his duties, but they did not.