The Federal Trade Commission, which called for a Do Not Track Button two years ago, will enforce the effort.

FORBES: President Obama's Consumer Privacy Bill of Rights

The do-not-track button featured in most browsers, and soon to be a stable feature in Chrome, so far a laggard, encourages internet citizens to make a choice.

ENGADGET: Editorial: We, the digitally naked

But a puncture to his right-rear tyre slowed down his progress and he was passed on track by both Button and Alonso before coming into the pits on lap eight.

BBC: By Sarah Holt