Concern growing in Mali

The Pentagon is preparing small military teams to send to Africa to help deal with growing insurgencies in the Northern part of the continent. In the meantime, officials in Mali say Islamists who seized the northern half of the country are moving closer to areas under government control. The insurgent advance was noted recently as Al-Qaida linked militants used bulldozers and heavy machinery to construct hideouts in the in Northern Mali. Now there's concern they could take over the whole country.