Q4 economy up 3.7%, but slowdown dangers lie ahead
                                
                                
                                    (Newser) -
                                    Surging economic data, such as new construction, small business confidence, and initial jobless benefit claims, show the American economy is growing at the fastest clip since the recession started—at 3.7% annualized in the fourth quarter, that's four times faster than it was growing at the start of...