Blatter has previously
spoken out against the use
of cameras, saying it would
disrupt the flow of the game.
However, the world football
chief now admits FIFA will
discuss the matter in March
and could bring in goal-line
cameras after this summer's
World Cup.
"I'm not absolutely against
it," Blatter told Sunday
newspaper SonntagsBlick.  "If
the technology is ready to
adopt, then I am in
agreement.
"If the security of the system
is guaranteed then we will
introduce it.  But it will not be
ready for the 2010 World
Cup.
"But in any case it will be
studied in March, at the next
meeting of the International
Football Association Board,
the international body which
establishes football rules
and is the only one that can
change them. "
Calls were made again for
the introduction of video
technology following Thierry
Henry's controversial
handball which led to
France's extra-time winner
against the Republic of
Ireland in November's World
Cup qualifying play-off.
Blatter also ruled out the use
of extra referees during the
World Cup, something which
is currently being tested in
this season's Europa League.
He added: "We will not make
any experiments in this
competition, not even with
extra referees. "

As more tactics are introduce FIFA has to adapt in order to curb unnecessary agitation and confusion. 

They really have to.