Will Libyan Rebels Kill Civilian Gaddafi Supporters?

As the USA continues it massive bombing, strafing and missile attacks against Gaddafi, the question rises, “Will the rebels just leave the thousands of Gaddafi supporters alone, or will they attack and kill them?  This is a real problem because we already know that fighting has happened between the rebels and civilians supporters of Gaddafi.  So, when the genocide begins and the rebels start rounding up the tribe of Gaddafi, (please remember that this is a tribal society) imprisoning them and or just slaughtering them, what will the USA do?  This issue was raised in the TV news reports today March 31st, and the response of the administration was that then we would attack the rebels!  Really!  How do we excuse that?  Add to this the ridiculous statement made on March 31st by Sec. Gates  that any future Sec. Defense that advised in favor of a land war in Africa or Asia should have his head examined.  Really!  I seem to remember that Gates was 100 % in favor of the invasion (air) and war against (missiles) in Libya.  Is this his honesty showing up, a day late and a dollar short?