Not just because of the horror of what happened to young children in a peaceful school in a quiet neighbourhood.
But because President Obama’s immediate reaction was to say that ‘meaningful action’ is now required.
What is ‘meaningful action’?
Well it’s not a political promise. We’ve all seen many of those go by the way.
To my mind it is about measurable outcomes and real benefits.
A real benefit would be that by the end of this decade, global citizens will feel reassured that wherever they travel in the world, including in the United States, there will be almost no chance of them being murdered by a lethal weapon in the hands of a civilian.
A measurable outcome towards realising that benefit would be that by the end of Barack Obama’s Presidency, Congress will have voted through legislation that makes it illegal to carry or supply a lethal weapon in the United States unless the carrier/supplier is cleared by the Federal Government and its agents.
That surely is as test of the very definition of the United States.