Keith Humphreys

Australia recently decided to try something ambitious. Starting late last year, all children under 16 have been banned from having accounts on social-media sites such as TikTok, YouTube, and Instagram. Because no country has attempted such a ban before, knowing the effects in advance is impossible—and they may be hard to assess even years after implementation.

America’s most radical experiment with drug decriminalization has ended, after more than three years of painful results. Oregon Governor Tina Kotek has pledged to sign legislation repealing the principal elements of the ballot initiative known as Measure 110: Possessing hard drugs is again a crime in Oregon, and courts will return to mandating treatment for offenders.