Sun Tzu It's not a problem though is it ? It's the nature of the game. It's a problem because people witter on about 'consistency' rather than actually trying to understand what the laws of the game are about and how they are applied. The problem is with the fans and 'experts' who argue from a point of view that is removed from what the game actually is. It is (I would argue) impossible to make the rules black and white without fundamentally changing the nature of the game.
I'd also hope that at the highest level of the game there is less variation in interpretation between officials as they are all given the same briefing. It will never appear to be 100% (partly because we're so guided by incompetant fools in the media and partly because I don;t the law makers do enough to communicate with fans, players and managers about the way decisions are made and how they are instructing referees to view certain offences.
Whilst Premiership managers still go on about players deserving red cards for being 'the last man', as David Moyes has done in this WC I think we have big problems with the running of the game. I can;t imagine another other sport has such poorly informed participants as football does.
FFS, 'the last man' is a rule of thumb. Only the autistic have a problem with it not being in the letter of the law because anyone with a bit of common sense knows that 99% of the time if you're fouled by the last man you're left with a clear goalscoring opportunity because you are left one-on-one with the keeper!
WR has it spot on, video technology won't take away different perceptions of the same event, irrespective of your understanding of the laws, because of that any matter of opinion decisions can't be judged by technology.
I'd happily see some form of goaline technology that can answer the factual decisions on the ball being in or out of play, but that's about it for me.
I do agree it's not the problem it's made out to be though Sun Tzu.