The Washington political world is in disarray. Britain’s election tumult has scrambled the outlook for Europe. And economies in the United States and abroad are plodding along at a pace that hardly suggests robust health. Yet when the Federal Reserve meets Wednesday, it’s all but sure to raise its benchmark interest rate for the third time in six months — a pace the Fed would normally adopt when it’s trying to slow an economy at risk of overheating. So why the rush to keep raising rates? Even with the economy growing sluggishly, the barometers the Fed studies most closely have given it the confidence to keep ... (full story)