The so-called bond vigilantes may be back, 30 years after they led a sell-off in Treasury securities over the prospect of higher government spending by a new Democratic administration.The Federal Reserve has downplayed the risk of inflation, and many experts discount the danger of a sustained rise in prices. But there is an intense debate underway on Wall Street about the prospects for higher inflation and rising interest rates.Yields on 10-year Treasury notes have risen sharply in recent weeks, a sign that traders are taking the inflation threat more seriously. If the trend continues, it will put bond investors …
