The last few years of the U.S. economy have been like one of any dozen CBS procedural dramas, where despite several mid-episode twists and the occasional cliff-hanger, the broader plot development is minimal and the resolutions are rather predictable. For example, take the granddaddy statistic of economic growth: GDP. The government reported this morning that GDP grew at a 4 percent annual rate in the second quarter of 2014, which is great.