The 20th anniversary of the September 11 attacks is understandably a time of deep sadness as the world remembers an act of evil that’s still hard to believe. But for some it’s also a chance to celebrate the opposite: kindness, compassion and the very best of humanity. In the mayhem of the day that saw terror raining from the skies, American airspace was shut down, and a tiny town in a remote part of north eastern Canada suddenly found itself the destination for commercial passenger aircraft ordered to land immediately. Seven thousand plane people with nowhere else to go were about to discover the delights of the wonderful community of Gander.