L.A. TIMES.MEDIA/BACK IN BUISNESS 2013 Global markets sank Thursday after the European Central Bank announced stimulus plans that came up short of what investors had forecast. The bond market was especially roiled by the ECB"s move. Bond prices in the U.S. and Europe fell sharply, and yields jumped. The Dow Jones industrial average lost 252.01 points, or 1.4 percent, to 17,477.67. The Standard &...