Host Ira Glass talks with an NPR business and economics correspondent about two gatherings he attended—one at the Ritz Carlton and one at a community college in Brooklyn. The first was an awards dinner for finance professionals who created the mortgage-based financial instruments that nearly brought down the global economic system. The other was a non-profit conference for people facing foreclosure. Ira explains that today's show lays out how the finance guys and the people facing foreclosure are connected by a chain of middlemen, and that together, they all brought about the current housing and credit crisis. (4 minutes)