Investors aren't happy about the new world tension set off by the Pentagon's killing of an Iranian commander. The Dow fell more than 200 points at the open and global stocks slumped as well, reports the Wall Street Journal. Also, oil prices were surging on fears that new unrest would hurt production, notes CNBC. The benchmark price of Brent crude rose nearly 4% to $68.73 and had been as high as $69.50. Also related: Gold prices were rising as investors apparently sought safer havens for their money. Gold increased 1.4% to $1,549 per troy ounce, the highest since August. (More stock market stories.)