Inspectors General exist to ferret out waste, fraud and abuse. They save and recover money for the government. But how do you measure the effectiveness of the IGs themselves? Researchers at the Brookings Institution think they’ve found a way to figure out the return on investment agencies get from their inspectors general. John Hudak is a fellow at Brookings, and co-authored the research report. He joined Tom Temin on the Federal Drive with more on the findings and the methodology behind them.