The Immigration and Naturalization Service has come under increasing scrutiny during the last six months.nbsp; When it was found that some of the 09/11 terrorists had overstayed their visas and were on the a list of known terrorists, yet the INS had no idea where they were, it rang alarm bells for many.Listen to this report that contains information on a cover-up by INS officials in Florida and a complaint by irrate INS employees who blew the whistle on the cover-up.nbsp; Then listen as Sixty-Minutes reveals how the official responsible for the cover-up was promoted to a very sensitive position...