The World Trade Organization warned that a spike in trade restrictions by major nations is threatening to hold back the global economy. Trade coverage on imports among Group of 20 countries — including tariffs, import bans and new customs procedures — topped $336 billion between October and May, the organization said in a report Monday. That’s the second-highest reading, after the prior period’s record $481 billion. The figure doesn’t include the actions under consideration or threatened by governments. (Bloomberg)