Moammar Gadhafi continues to hold out in Tripoli, and the United States says no option is "off the table." Secretary of State Clinton today denounced the Libyan leader for using "mercenaries and thugs" against his own people. Meantime, UN Secretary General Ban Ki-Moon was scheduled to visit the White House. But, while unanimously approving tough sanctions, the UN Security Council has banned intervention. It's unclear if Lybia faces civil war, or what the country might look like after Gadhafi. The so-called “Arab Spring” has led to regime change in Egypt and high anxiety in Saudi Arabia and Jordan. What does that mean for American interests?