WASHINGTON, D.C. — The crypto sector and some of the financial giants on Wall Street are sprinting to put stablecoin infrastructure in place well before the U.S. watchdogs set up their regulations, and Federal Reserve Governor Michael Barr took a moment on Thursday to remind the industry's legal experts of the hazards posed by nominally safe assets. "Issuing liquid liabilities redeemable at par but backed by assets, even high-quality ones, about which creditors might have questions makes private money vul ...