Lehman Brothers Holdings Inc. faces higher borrowing costs today than it did in June, even after the steepest quarterly drop in U.S. Treasury yields since 2002 pushed interest rates down for everyone from Procter & Gamble Co. to AT&T Inc. Investors are so leery of Bear Stearns Cos. that its 10-year bonds trade at a discount to Colombia, the South American nation that's barely investment grade. Goldman Sachs Group Inc. is being punished with a higher yield than Caterpillar Inc., the heavy-equipment maker.