John R. Lott joined us again for a look at the Parkland massacre. While it's nice to believe that with the simple passage of a law, such events will never happen again; the reality is quite different. John first proposed arming school officials back in 1998 and was met with universal shock and alarm. Even the NRA opposed it. What a difference 20 years can make. The absence of firearms, the definition of a gun free zone, only makes such targets more attractive. It's time to wise up.