What should be done about Colonel Gadhafi?

Libya protests
Residents stand on a tank holding a pre-Gadhafi era national flag inside a security forces compound in Benghazi, Libya on Monday, Feb. 21, 2011. Libyan protesters celebrated in the streets of Benghazi on Monday, claiming control of the country's second largest city after bloody fighting, and anti-government unrest spread to the capital with clashes in Tripoli's main square for the first time.
AP Photo/Alaguri