Pope Francis is nostalgic for the old days when he could still travel by train, he has revelaed in an interview. “I have always loved travelling by public transport. It’s a way to be among people, to feel their warmth and their worries,” the 87-year-old head of the Catholic Church told the monthly newspaper Freccia of the Italian state railway. As a schoolchild, he travelled every day by train from Flores to Floresta, two districts of Argentina’s capital Buenos Aires. “Today, that’s one of the things I miss most,” Francis said. The Argentinian-born priest, who is in poor health, rarely leaves …