Five years after Romania nightclub fire, have lessons been learned?

On October 30, 2015, a deadly fire at a nightclub in Bucharest shook Romania to its core. Revellers in the basement of the Colectiv club found themselves trapped in a stampede for the sole exit. The tragedy triggered public anger, with thousands taking to the streets to denounce the corruption plaguing the country, leading to the fall of the government within a week. Five years on, what lessons have been learned? Our reporters followed the survivors' battle for justice.