Ground Zero, the gaping wound where New York’s Twin Towers stood, will come to life today when construction crews finally begin rebuilding the World Trade Centre. It comes a day after officials approved plans for a tower and other buildings after four years of sometimes bitter debate.Senior city executive Ken Ringler said: “In my view this is one of the best things to happen to lower Manhattan in a long time. We are beginning on all the major projects, we have eliminated a lot of the disagreement.” The deal calls for developer Larry Silverstein to build the centre-piece Freedom Tower but to hand it over to city authorities once its completed. He will build and keep three other office towers on the site. The project has been a source of emotional dispute for citizens and officials in the aftermath of the September 11 attacks. Freedom Tower will be one of the tallest buildings in the world.