Paul McCartney's wife Heather Mills is to appear in a new advertising campaign in the United States in an effort to curb the number of deaths on the roads.
The human rights campaigner is all too familiar with the terrible price of traffic accidents after losing her leg as the result of being hit by a police motorcycle in 1993. And 20 years previously her mother likewise had to have a leg amputated after a collision.
Heather is hoping her participation will help boost the World Health Organisation's new campaign to make roads safer. In the advertisements she appears without her prosthetic limb, in order to draw attention to the dangers of careless driving.
"It took one human error to take my leg and one human error to take my mother's," she says. "You really can fix this. It's just about more awareness."
According to the WHO, 1.2 million people die in road accidents each year, a figure that could rise to 2.3 million by 2020.