Economists would say the rising prices are like the check engine light coming on on the dashboard, and to lift the gas tax would just put a piece of black tape over the warning light.

NPR: 2 of 3 Presidential Hopefuls Back Gas Tax Holiday

When that annoying "check engine" light appears on your dashboard, for instance, the service manager sees it, too, on his computer.

FORBES: Auto Pilot

The star informer was Trevor Haken, a former detective sergeant who helped to install miniature video cameras in the dashboard of a police car and in the light fittings of a prostitute's home.

ECONOMIST: Australia