BUSINESS MEMO: LABOR MARKET TIGHT

America's historic economic expansion propelled the unemployment rate to a 30-year low of 4 percent in January, giving many workers the best labor market they have seen since taking their first job.

Trying to keep pace with the roaring economy, employers added a whopping 387,000 jobs to their payrolls last month, the largest leap since September 1997, the Labor Department reported Friday.

Usually January isn't a big month for hiring, but the better-than-normal weather early in the month gave a big boost to employment, particularly in construction and other fields that tend to flourish when the weather is good, economists said.