U.S. Markets took a hit in midday trading Thursday on worries about the fighting between Ukraine and Russia intensifying. The Dow Jones Industrial was down triple digits earlier in the session despite positive reports on the U.S. economy and job market. The good news extended to the housing front. The National Association of Realtors said its Pending Home Sales index rose 3.3 percent in July. GlaxoSmithKline (GSK) and the U.S. government will begin human trials of an Ebola vaccine next week. Ford (F) began production of its new 2015 Mustang today. Ford's president of Americas, Joe Hinrichs, says 'there's going to be strong demand.' Weak third quarter outlook is pushing shares of Williams-Sonoma (WSM) sharply lower in the session.