States, cities and special interests from around the country are getting involved.

Watch clips from Bill's interview with economist and New York Times columnist Paul Krugman.

How exactly could gas drilling make you ill? Let us count the ways.

An increasing body of research shows the government serves only the wealthy. When money talks and you have none, how can you believe in democracy?

Our latest roundup of key money and politics reporting. This week: Karl Rove raises millions and 15 actions Obama could take to stem the flow of money in politics.

The flaw in Thomas Piketty's book is that it is not a tour de force of theory, enabling mainstream economists to ignore its powerful message.

Polls show that living wage hikes and paid sick leave bills are popular. So corporate lobbyists have found a workaround.

The Nobel prize-winning economist tells Bill that America is on the road to becoming a society controlled by those with inherited wealth, like "Gordon Gekko's son or daughter."

Bill reflects on the forces that are causing inequality to skyrocket, why it matters and where we're headed in the future.

Economist Paul Krugman explains how the United States is becoming an oligarchy - the very system our founders revolted against.