Gold, the Fed and a September rate hike: former Federal Reserve Bank of St. Louis President Jim Bullard on Kevin Warsh's Jackson Hole speech, why foreign central banks found physical gold more desirable than Bitcoin, and why he thinks the FOMC is split pretty much down the middle. Warsh told Jackson Hole this morning that responsibility for 65 months of inflation sits squarely with the central bank. Markets moved a September hike from a long shot to the base case inside an hour. Bullard puts...