North Korea’s latest nuclear test triggered diplomatic aftershocks in Asia — and a growing concern that the volatile regime in Pyongyang may pose the first big test for the next U.S. president. Last Friday’s test was the fifth and largest nuclear device North Korea has detonated, estimated at 10 kilotons, and it came defiantly on the 68th anniversary of …

  For the first time since early 2014, the dollar value of goods imported and exported by the G-20 countries actually grew a little in the second quarter of this year, the Organization for Economic Cooperation and Development reported last week. This is probably just because oil prices bounced back a bit after hitting a 12-year low in the first …

  A key demand of Brexit voters was to take back control of the U.K.’s immigration policy. Prime Minister Theresa May has promised she will —but hasn’t said what she’ll do with this control once she has it. Many Brexit supporters are hoping for a severely restrictive system. This would be a mistake, and May ought to say so. Liberal …