Volatility is back in the picture for U.S. markets, and in a big way. To get the markets started Thursday morning, TheStreet is joined by Alan Knuckman, chief options strategist with Barchart Bullseye Options, and he's ready to get his kicks on the VIX. And, Alan's ready to fly the friendly skies, but he's cautioning investors that not all airlines are born, or performing, equal. Delta Air Lines and American Airlines are priced far higher than United Continental. Some investors may see a buy opportunity, but Knuckman is looking for only one winner out of a field of airlines that generate $40 billion annually.