Associated Press: The region famous for jilting the street car to take up a love affair with the automobile is trying to rekindle its long ago romance with commuter rail. If successful, the novel plan to borrow billions from the federal government, led by Los Angeles Mayor Antonio Villaraigosa, would result in the largest transit expansion project in the nation. Los Angeles County voters agreed two years ago to pay a half-cent sales tax over the next 30 years to extend train and rapid bus lines, …