Was it a goal? Debate should end at Cup

Was it a goal, or wasn't it?

The question shouldn't need to be debated in the next five weeks in Brazil, where goal-line technology will be used for the first time in a World Cup.

Fourteen cameras - seven trained on each goalmouth - have been set up in all 12 World Cup stadiums. The cameras will record 500 images per second, and a computer will digest the frames. Within a second of a ball crossing the line, the referee's special watch will vibrate and flash "GOAL".