apparently one official of FIFA said, there is no justification for 'technology' of any sort, be it a chip in the ball or whathave you, decisions are made on the spot and that's it - even wrong ones, it all adds to the 'fun' of the game. What fun? It's not fun at all, it causes bad feeling on the side of the loosing team, and the team that wins might feel good, but when you win by default, it isn't honest or just. When two people (eg the ref and the linesman) make the same 'wrong' decision, to me it smacks of corruption, somebody's being paid off.