I agree wholeheartedly with what you said J. Look at the NFL, NHL, even Tennis, they have technology to introduce this stuff, but the need for Referee's/Umpires still remains. I think Blatter's reasoning is a load of bull as well. Apparently as you said, he worries it removes refs entirely, and he also said it's because it removes any talk or debate about it afterwards which fans love. Ugh, no? Fans like talking about a brilliant piece of play, the skill of an individual during a match or a mistake from the opposition, I don't think anyone likes the debate of did the ball cross the line or not. Like I said, there has to be a line drawn on how far it goes but surely situations like what happened in England's match today can be removed entirely from the game, making it fairer for all?
ckd: It's all to do with the refs mate. That ball, or any ball for that matter, would have crossed the line the way that Lampard hit it and where the ball hit the underside of the crossbar. The blame is firmly upon the referee and the linesman for failing to see such an obvious goal. Even in the Argentina match, Tevez was in the most clear offside position that you'll see at this tournament, yet again the ref didn't see it and Mexico got punished for it.
The French team probably shouldn't even be at the WC in the first place. If you want to know more about disgraceful behaviour just look up France v Republic of Ireland for the 2010 qualifying campaign and read about what happened there.