Petra Schulz co-founded Moms Stop the Harm after her son died of an accidental fentanyl overdose. She weighs in on the government's plan to create a fentanyl czar as part of negotiations with the U.S. Plus: want to get a pet with your partner, but worried about what would happen if you split up? Meet Rebecca Field Jager, the law student who's created the Pup-Nup.