Architects dispute tallest US building claim of 1 World Trade Centre

Rising from the ashes of 9/11, the new World Trade Centre tower has punched above the New York skyline to reach its powerfully symbolic height of 1,776ft and become America’s tallest building. Or has it?

A committee of architects, recognised as the arbiters on world building heights, has been meeting to decide whether a design change affecting the skyscraper’s 408ft needle disqualifies it from being counted. If so, it would deny the tower the title as the nation’s tallest.