The retail sector is roaring back to normal, driven by robust online sales. The Commerce Department said on Apr 15 that retail sales totaled $709.6 billion, growing 0.7% month over month in March, which easily surpassed the consensus estimate of a rise of 0.3%.Year over year, retail sales grew 4% in March. Total retail sales for January through March climbed 2.1% from the year-ago levels. Excluding auto, retail sales rose 1.1%, also beating estimates of a rise of 0.5%.The report also pointed out that e-comm ...