CNN:[U.S. portion of the military action in Libya to only last for a few days]

Gunfire, explosions heard in Tripoli

http://www.cnn.com/2011/WORLD/africa/03/19/libya.civil.war/index.html?hpt=T1&iref=BN1

Obama is planning for the U.S. portion of the military action in Libya to only last for a few days, according to a senior administration official, who was not authorized to speak about sensitive military matters.

"After that we'll take more of a supporting role," the senior official said.