Economy Strains Under Weight of Unsold Items By Annys Shin Washington Post Staff Writer Tuesday, February 17, 2009; A01 The unsold cars and trucks piling up at dealerships and assembly lines as consumers cut back and auto companies scramble for federal aid are just one sign of a major problem hurting the economy and only likely to get worse. The world is suddenly awash in almost everything: flat-panel televisions, bulldozers, Barbie dolls, strip malls, Burberry stores. Japan yesterday said its economy shrank at an 12.7 percent annual pace in the last three months of 2008 as global demand evaporated for...