Wednesday assorted links by Tyler Cowen January 25, 2017 at 12:57 pm 1. Might facial recognition systems replace passports in Australian airports by 2020? 2. John Arnold’s war on bad science. 3. Peter Thiel now a New Zealand citizen (NYT). 4. Arbitrage?: “B.C. stamp collectors reap benefits of unique Canada Post stamp machine” 5. Has DC already reached “peak restaurant”? 6. Polling economists on the end of slavery. 7. More on whether ideas are getting harder to find.