The yield curve has inverted again, raising fears anew that a recession may be in the cards after all (or is that just another reverberation from the global savings glut that Fed Chariman Bernanke likes to talk about?) In any case, the 10-year Treasury’s yield of 4.56% in mid-morning was trading below the 2-year’s 4.61%. The inversion is all the more striking coming after last week’s batch of economic releases that suggested that the economy was still growing at a healthy clip in spite of the surprisingly low rate of growth posted in the first estimate of fourth-quarter GDP.