railway tragedy

today i woke up to see one of the worst train accidents in our country's history.two quick points i want to raise.initial reports suggest that the karachi express rammed into the quetta express at 3.30 in the morning.apparently the karchi express driver fell asleep at the weel cos he ignored the red light signal that was on.as a result a horrific crash ensued.what puzzles me more is that the tezgam express which was coming from the other direction rammed into the crash site half an hour later.why that train was not alerted and stopped in time is a mystery to me.however these are initial reports.if these reports are confirmed then heads need to roll and i dont mean statiuon conductors etc.i mean min. for railways and chairman railways.in india such accidents unfortunatly are common.each time the minister resigns.accountability is needed and needs to start from the very top.only then will the ministries start functioning like tight ships.