Economists are reacting to the new jobs report saying the fall in the unemployment rate is legitimate good news, while President Obama calls it a "cause for hope." "It was not driven, as it sometimes is, by labor force dropouts," wrote Stephen Stanley, of RBS. "The labor force grew by 360,000 in January while household employment surged by 784,000, more than reversing the big December decline." (Read more economists' opinions on the Jobs report at the Wall Street Journal) ...