Foolestroupe - it's not a question of which atrocities are more terrible than others.

The Nazi Holocaust, the Atlantic Slave Trade, the genocide of the Armenians, the Killing Fields in Cambodia, the mass slaughter in Ruanda - they are all different events, with some common causes and some special causes. There is a term which can be applied to all of them - Genocide.

But it is also sensible to have terms which separate them out.

The Nazi Holocaust, in which millions of people were excluded from humanity and systematically slaughtered, in a parody of the industrial process, was an event which was unique in a number of ways. It deserves to be treated separately - in its entirety, not restricting attention to some of its victims, and ignoring others.

And its consequences in later years can also in a sense form part of that event, rather in the way that a motorway pile up results in secondary collisions, and they are all part of the same accident. That's what I mean by saying that the tragedy of Palestine needs to be seen in the context of the earlier events. Similarly the Killing Fields needs to be seen in the context of the Vietnam War.