Since the dollar is steadily dropping in the past years, that money is not coming back to the us, apparently.

How will employing more people in oil extraction hurt the economy?

But we all know some of that gas money goes into the economy right... when terrorists funded by it buy fertiliser, diesel (at $3/gallon!), and cars, then tons of money ends up coming from insurance companies' portfolios to pay for the healthcare of the injured. And portfolio money comes from the gas prices too!