Scott Martelle: Televised meetings over school shootings are cathartic, but change nothing

There were a couple of remarkable moments Wednesday in Washington, D.C., and later in Sunrise, Fla., a few miles from where 17 people were slaughtered at Marjory Stoneman Douglas High School last week. The first was a televised meeting between President Donald Trump and survivors and relatives of children killed in school shootings. The second was a CNN-hosted town hall that brought together survivors of the most recent massacre, other local residents, elected officials and a spokesperson for the National Rifle Association. There were frank discussions in both gatherings. They made for good cathartic theater.