Holocaust survivors gathered in central London to light candles and remember the victims of genocide on Holocaust Memorial Day.A group of nearly 30 survivors and their families stood on the steps of Piccadilly Circus on Thursday to remember the six million Jews murdered during the Holocaust, as well as the millions from other groups killed under Nazi persecution.The day is also used to remember the millions killed in subsequent genocides in Cambodia, Rwanda, Bosnia and Darfur.Jewish shopowner speaks of trauma after 'horrific' anti-Semitic attack The landmark junction’s giant billboard displayed portraits of them and fellow survivors and a film was...