The American jobs engine got off to a explosive start in the first two months of 2017 as the economy added nearly half a million new workers, but keeping the pedal to the metal will be hard to sustain. After 238,000 people were hired in January and 235,000 in February, Wall Street looks for a deceleration in March. Job creation could fall below 200,000. Part of the reason a slowdown is expected is because unseasonably warm weather inflated hiring earlier in the year in industries such as construction that usually experience seasonal dips in employment. Hiring usually tapers off in the following month.