While the official unemployment rate remains at a low 3.9%, there is an epidemic in the US and other Western countries of men -- and now increasingly women -- without work.These are millions of otherwise able-bodied working age adults who have given up on finding work, often driven to do so out of frustration and despair. It's gotten to the point where 1 in 6 prime working age men has no paid work at all. What is causing this?And what can be done about it?Because when an increasing percentage of your prime working age population stops contributing to economic productivity, not only do they suffer the consequences of diminished prosperity -- we all do.For a deep dive into this pressing crisis, we're fortunate to speak today with Nicholas Eberstadt, the Henry Wendt Chair in Political Economy at the American Enterprise Institute and author of the book Men Without Work.