The Federal Reserve is tapping into a depression-era power to buy short term debt from businesses, who have seen their credit dry up. The Fed hopes this will shore up the economy by giving businesses the overnight or weekly credit they need to make payroll or buy supplies. But will it be enough to stop the free fall in world markets? Our guest is Greg Ip of The Economist Magazine.

Both candidates say they have plans to expand access to healthcare and contain costs. How might these plans affect you?

The second presidential debate takes place in Nashville, Tennessee tonight. It's a town hall format, with questions from undecided voters. We speak with Rick Klein, senior political reporter for ABC News and Chas Sisk, business reporter for the Tennessean in Nashville.

The number of homeless people int he Bay State is at a record high. We speak with John Yazwinski, executive director of Father Bills & MainSpring, a non-profit that provides shelter and affordable housing on the South Shore of Massachusetts.

We speak to Dugald Steer, creator of the "ology" books: "Dragonology," "Pirateology," and "Egyptology" to name just a few, have sold millions of copies and enchanted young readers with their beautiful illustrations.