More than five years ago, Houston-based architecture firm PBK invited FBI officials, police chiefs from area school districts and educational leaders to meet and discuss what has become one of the country's most urgent threats: school shootings. Now, the company -- a leader in K-12 design -- has hired a law enforcement veteran to further its efforts in designing secure facilities without detracting from the educational mission. Chief Alan Bragg and PBK partners Ian Powell and Dan Boggio join Nancy and Allyn to discuss what’s being done to keep schools safe.