David Westin: This is "Wall Street Week." I'm David Westin, bringing you stories of capitalism. The war in Iran has driven up the price of oil. The head of the International Energy Agency explains what's happened and what could come next.Plus, as Americans pay their taxes this week, are the rich paying their fair share. And should we care. And we need more electricity for everything from data centers to defense, which means we have to find a lot more copper to conduct that electricity.The U.S. is pushing ha ...