volatility is back. a possible diplomatic solution could avert a u.s. military strike on syria. and the oil market and stock market investors on edge. fears of potential u.s. action pushed oil prices to a two-year high. syria isn't a major oil producer but some worry the conflict could spread to neighboring countries. >> the nightmare scenario is if you have lan-out mid eastern war that includes the persian gulf. under those circumstances you can see the price of crude go to $140 a barrel. >> that would not be good for drivers, of course. the threat of fighting in the middle east brings up images of cars stretched around the block waiting for gas. the u.s. is not as dependent on