Thank you! Finally a productive response. See, we all can learn something here rather then just bashing each other.
Now the ore and gems may not be enough for the US to care too much but the uranium could have political issues if the "wrong" people are in charge in the congo.
Perhaps the US military is too overburdened at the moment to be able to help out. Perhaps the civil war does not change any strategic issues (ex. both sides may be pro-US - or at least not anti-US). Sounds like the main issue the UN is dealing with is disease and hunger. Maybe more aid could be sent. The UN has 4k troop there, the African Union plans to send 7-10k troop soon.