One new device, the iWalk prosthetic foot and ankle, uses a chip-controlled motor to propel amputees forward in the latest step toward robotic legs.

WSJ: Boston Marathon Amputees Face New Reality

Ahead of the meeting, Mosley had insisted that he would not step down as part of any potential agreement and might even seek re-election as head of world motor sport.

BBC: F1 deal ends threat of breakaway