ixion.....when there is a disaster....famine, death, etc ....people run for the high moral ground with compassion and understanding, but there is only so much of compassion and understanding and it soon runs out. One often gets "sensitized" to human suffering, bored, if you like and this is picked up by the media in an effort to ease your boredom and get you running back to that high moral ground which we all like to occupy.
Iraq, Haiti, New Zealand, Afghanistan, Japan and today.....Libya........and when you are fed up with that......the media will move on............they are experts in the field.