Letting your teenage children use social media can feel as though you've suddenly let them loose inside a scene from Trainspotting -- there's so much that could happen, and that's scary, no question. The latest source of panic among parents is Snapchat's new Snap Map, a map that lets users see where their friends are in real time, and find out what they're doing. So Jonah can see that Hank and Mia are at a spin class nearby, and decide to meet up with them IRL. The feature, according to Snapchat, helps people get "inspired to go on an adventure".