Few lessons learned 2 years after disaster

255 workers died in one of the country's deadliest industrial accidents in history

More than two years after a fire tore through a Karachi clothing factory, killing 255 workers, no one has been prosecuted for one of the deadliest industrial accidents in Pakistani history.

The abandoned hulk of the Ali Enterprises factory, which supplied cheap clothes to Western retailers, now stands as a monument to a disaster many would rather forget.