The squad that fired two bullets into Osama bin Laden's head yesterday is known as Team Six -- officially called the Naval Special Warfare Development Group (or DEVGRU) -- a military unit that recruits directly from the Navy SEALs ... making it the absolute elite of the elite.
The Navy's Team 6 is one of two ultra-secret "Tier One" US Special Ops counter-terrorism units -- along with the Army's Delta Force -- and falls under the Joint Special Operations Command (or JSOC).
The two Tier One units execute what are known as "black operations" -- missions so secret, they fall outside standard military protocol ... and often require the direct approval of the President.
In other words, only a select group of military personnel -- including President Obama and his closest advisers -- had any idea Osama bin Laden had moments left to live yesterday.
The technology used by JSOC to track and kill Osama bin Laden is still classified -- but according to reports, JSOC worked closely with the CIA to procure the intelligence they needed to execute their mission.