'Siberian Express' partly to blame for record-setting temps across country
                                
                                
                                    (Newser) -
                                    Roofs collapsing  from snow,  canceled flights , power outages, miserable commutes, and  piles of snow  have become the norm this winter, but now officials—especially in the Southeast—are cranking up the heat again and shuttling the homeless into shelters as a cold front sweeps the country today and tomorrow,...