updates and the administration is in touch with his russian counterparts. >> a discovery in afghanistan could be a major turning point in the war and the future for the country. u.s. geologists found one trillion dollars worth of untapped mineral reserves which means afghan people could be sitting on a treasure chest. general petraeus says that's a stunning potential. how do the teams make this discovery? >> well, it's been known a long time that there are valuable minerals in afghanistan. it goes back to the 80s, recently the u.s. geological survey did an assessment and came up with a wide variety of minerals. including iron, copper, lithium and gold. the lithium could be important because it's more valuable as