Greening The Steel Industry; A Look At '2nd Amendment Sanctuaries'

Science journalist Mark Peplow explains the ways the steel industry is moving toward producing less greenhouse gases, including a Swedish project that is preparing to make fossil-fuel-free steel commercially available in five years. And, so-called "Second Amendment sanctuaries" are states, cities or counties that adopted legislation meant to counter perceived encroachments on gun rights. A professor breaks down their legality.