A black box in your car? Some see a source of tax revenue

The devices would track every mile you drive —possibly including your location — and the government would use the data to draw up a tax bill. WASHINGTON — As America's road planners struggle to find the cash to mend a crumbling highway system, many are beginning to see a solution in a little black box that fits neatly by the dashboard of your car. The devices, which track every mile a motorist drives and transmit that information to bureaucrats, are at the center of a controversial attempt in Washington and state planning offices to overhaul the outdated system for funding America's major roads. The tea party is aghast. The American Civil Liberties Union is deeply concerned, too, raising a variety of privacy issues. The push comes as the country's Highway Trust Fund, financed with taxes Americans pay at the gas pump, is broke. Americans don't buy as much gas as they used to. Cars get many more miles to the gallon. The federal tax itself, 18.4 cents per gallon, hasn't gone up in 20 years. Politicians are loath to raise the tax even one penny when gas prices are high.
read more at link above...