Today on The Gist, we ask what it would be like to take the worst thing that has ever happened to you and see it displayed in a famous new building with a gift shop. We spoke with BuzzFeed’s Steve Kandell about his Sunday visit to the National September 11 Memorial and Museum. Then, Patrick LaForge from the New York Times tells us the origin story behind a certain ubiquitous Twitter disclaimer that’s attached itself to social media like a barnacle. For Mike’s Spiel, he considers the North Korean pop star who shocked the world by actually being alive. Get notified as soon as The Gist posts each weekday: www.slate.com/gistemail.