"I have been waiting for this day for seven decades and I am overjoyed that it has finally arrived,” said Hiroshima survivor Setsuko Thurlow in July, when a new treaty banning nuclear weapons was agreed at the United Nations in New...

I was 22 years old when I had to leave my homeland, South Africa. I had no choice. I was living underground for a year by then, to avoid being arrested. This was 1987, in the midst of one of the most bloody and violent periods in the...