Why media advertise the death and injuries too much to world but it keeps silent on many important issues

Why is only death and destruction in Peshawar given full live coverage? Media was virtually silent the whole day with the health campaign.
It was today polio campaign for whole day but media was not there. But it represent Pakistan too much negative. This may be a new planning to affect dialogue process between Taliban and Pakistan. If someone blames Taliban it means they are trying to spoil dialogue process
But this incident is not good as people have been killed and injured about 5 injured and over 13 got injuries.
What is behind all this no one knows.