by Laura Conaway

The movement to build greener cars hits a roadblock:

In the rush to build the next generation of hybrid or electric cars, a sobering fact confronts both automakers and governments seeking to lower their reliance on foreign oil: almost half of the world's lithium, the mineral needed to power the vehicles, is found here in Bolivia — a country that may not be willing to surrender it so easily.

The New York Times story is worth it for the pictures alone.