2011/02/28 Headlines: Anti-Gaddafi Forces Close in on Tripoli; U.N.: Over 100,000 Flee Libya; Gaddafi's Son: "Everything is Peaceful" in Libya; Security Council Backs Libya Sanctions, War Crimes Probe; Over 100,000 Rally in Madison; Thousands Join Nationwide Protests; Providence School Teachers Warned of Layoffs; Governors Push Changes to Medicaid; Afghan Civilian Killings at Record Level; Mubarak Faces Travel Ban, Asset Freeze; McCain Praises Egyptian Revolution; Thousands Protest in Bahrain, Opposition Leader Returns; Protests Force Resignation of Tunisian Interim PM; Yemen to Unveil New Unity Gov't Amidst Unrest; 6 Reported Killed in Oman Protests; "Inside Job" Wins Best Documentary at Oscars