(Video at Source) Wednesday on MSNBC’s “Deadline,” host Nicolle Wallace and her panel discussed a new public service announcement from Sandy Hook Promise, a nonprofit founded by the parents of victims of the 2012 Sandy Hook shootings. Wallace said, “Here’s the deal that’s not an ad that’s life for those kids. And you talk to people in the mental health universe childhood and pediatric anxiety is through the roof.” She continued, “If you’re going to say I’m not taking the guns off the streets, I’m not taking the guns from the people who have no —a mass shooter doesn’t have...