Parkour’s street stuntmen resent the sport’s new organisers

A SHIRTLESS man floats through the air, some six or seven stories from the ground. Behind him is the roof of a grubby block of flats. At least five metres (16ft) in front of him and a couple down is another building. Tucked like a diver, he leaps above the abyss, rolls into his landing and sprints away.