Consider this. Hydrogen cars, like gasoline cars, store their energy in the fuel molecules themselves and thus don't need to transfer raw power over wires. Thank goodness for that since there's no grid around to charge even a fraction of our cars if they were electric. And this is the point -- and what makes the search for better batteries foolish -- you still gotta charge them. But where? The electric grid is already our Achilles heel.

A scam? Well, consider this. Hydrogen cars, like gasoline cars, store their energy in the fuel molecules themselves and thus don't need to transfer raw power over wires. Thank goodness for that since there's no grid around to charge even a fraction of our cars if they were electric. And this is the point -- and what makes the search for better batteries foolish -- you still gotta charge them. But where? The electric grid is already our Achilles heel.