For the umpteenth time, Deutsche Bank AG is ensnared in an alleged regulatory blunder. Except this time, the stakes are greater than its own integrity: Confidence in its regulator, the European Central Bank, is on the line too. The ECB is considering whether to probe Germany’s biggest bank for trading in its riskiest debt without the regulator’s approval, according to ...

To anyone who has followed the decade-long saga of Britain’s ambitious high-speed-rail project, known as HS2, the recent news that it’s at least five years behind schedule and 20 billion pounds ($25 billion) over budget shouldn’t come as a surprise. It should serve as a cautionary tale for policy makers dreaming of big projects at public expense. Understand at the ...

Ursula von der Leyen, the European Commission president-elect, has promised to run a “geopolitical Commission” in the next five years. A recent study by the European Council on Foreign Relations, the international think tank, shows that this is what Europeans want, too — but von der Leyen’s vision of the European Union’s global role isn’t necessarily aligned with theirs. Von ...