The US added 157 000 jobs in January meeting economists' estimates. The unemployment rate was essentially unchanged but rounded up to 7.9%. The participation rate was also unchanged at 63.6%. In January retail jobs rose by 33 000 construction by 28 000 and health care rose by 23 000. It should be noted that the Bureau of Labor Services updates its population estimates in January and does not revise the December numbers to reflect that. Index futures were higher ahead of the reprot. Dow (INDEXDJX:.DJI) futures were up 0.51% at 13 865. Futures contracts on the S&P 500 (INDEXSP:.INX) ...