The weather, along with the economy, handed setbacks to some. Heavy fog shrouded Chicago, causing more than 1,600 delays or cancellations in and out of its two airports and sending ripples around the nation. The effects of Superstorm Sandy added to the hassle for travelers on the East Coast.___ Drivers pay more for gas, but still give thanks Many drivers are giving more at the pump than a year ago but they still have reason to be thankful. Prices in many parts of the country have fallen recently, and AAA says gas prices could end the year lower than where they started. The national average Wednesday was $3.43, down 44 cents from mid-September although still 8 cents higher than a year earlier. Gas started the year at $3.28 a gallon. AAA says it should be between $3.10 and $3.30 when 2012 ends. Still, because the price was so high for so much of the year, Americans are likely to spend a record amount for gas in 2012. Tom Kloza of the Oil Price Information Service estimates that Americans will spend about $483 billion on fuel this year, eclipsing last year's record of $471 billion. And that's even as Americans use less gas by taking shorter trips or driving more fuel-efficient cars. ___ Expert sees a gathering storm for top fund manager NEW YORK (AP) â¿¿ The arrest of a former hedge fund portfolio manager in what prosecutors are calling one of the most lucrative insider trading schemes ever indicates that prosecutors may be setting their sights higher â¿¿ toward a wealthy business leader the suspect's firm was connected to, an expert says. Mathew Martoma made an arrangement to obtain secret, advance results of tests on an experimental Alzheimer's drug that netted more than $276 million for his fund and others, according to charges filed in U.S. District Court in Manhattan.