One way to get your head around exactly what happened with the mortgage crisis is to look at the tools that made it happen. Michael Osinski started out with a job in data entry to support his sick wife. A decade later, he found himself on Wall Street writing the software that let traders turn plain old mortgages into bonds. You could say it’s thanks to him that we all know the arcane term turned dirty word: mortgage-backed security. Osinski joins The Takeaway this morning to talk about his role in the financial meltdown and his new life as an oyster farmer.