You could decide to burn two copies and send one home for extra safety.

Only roll bars were added for extra safety during the 500 miles of racing.

Automatic platform gates were installed in August 2011 to provide extra safety.

And most people would be happy to afford the extra safety.

"A lot of our customers were doctors - professional people who felt the need for extra safety," he said.

"It was probably a clever bit of extra safety for whatever was inside the box."

As with any size of car seat, extra features don't necessarily mean extra safety.

For this extra safety, investors give up a little yield.

"Increasingly, those women either have to give up that extra safety, or not have an abortion."

Hawks kept him aboard for extra safety, but the man was quickly passing from an asset to a liability.