The enormity of the Wayanad tragedy is still not clear. With each day, the death count keeps on increasing. At least 200 people are still missing. NDTV is also running a campaign to support the survivors of this horrific tragedy. In this week's Big Fight, we ask, What are the lessons learnt from Wayanad landslides? And can we prepare ourselves to avoid another catastrophe? Watch the full show on NDTV.