A year ago today, the U.S. Department of the Treasury bailed out mortgage giants Fannie Mae and Freddie Mac. By the end of the week, financial behemoth Lehman Brothers had filed for bankruptcy and a global economic crisis had taken hold. We start a week of coverage that looks at the repercussions of the financial meltdown and where we're at, a year after it began.

We are joined by a roundtable of leading business journalists including Gillian Tett, capital markets editor for The Financial Times and author of “Fools Gold: How the Bold Dream of a Small Tribe at J.P. Morgan Was Corrupted by Wall Street Greed and Unleashed a Catastrophe;” Jon Hilsenrath, chief economics correspondent for The Wall Street journal; and New York Times business columnist Joe Nocera.

Listen to all the segments in this series.