FIFA has announced that it will use goal line technology at the 2014 World Cup matches in Brazil.
FIFA has already licensed two goal line technology systems, Hawkeye and Goalref, and is open to receiving solicitations from other vendors.
In the most recent report, the German firm Cairos appears to be the leading candidate system.
Sources cite embarrasing assistant referee mistakes such as the Frank Lampard goal scored but not awarded against Germany in the 2010 World Cup England v Germany match.
Don’t look for this in youth matches or college play, the technology is too expensive for all-purpose use.