But any glimmer of recognition of why people might have been driven to carry out such atrocities, sacrificing their own lives in the process - or why… - Seumas Milne

It has become almost received wisdom to bracket Stalin and Hitler as twin monsters of the past century - Mao and Pol Pot are sometimes thrown in as an afterthought - and commonplace to equate communism and fascism as the two greatest evils of an unprecedentedly sanguinary era. In some versions, communism is even held to be the more vile and bloodier wickedness. The impact of this cold war victors' version of the past has been to relativise the unique crimes of Nazism, bury those of colonialism and feed the idea that any attempt at radical social change will always lead to suffering, killing and failure.

Resistance and the unity of the working class is what will progress our movement.

It is this record of unabashed national egotism and arrogance that drives anti-Americanism among swaths of the world's population, for whom there is little democracy in the current distribution of global wealth and power. If it turns out that Tuesday's attacks were the work of Osama bin Laden's supporters, the sense that the Americans are once again reaping a dragons' teeth harvest they themselves sowed will be overwhelming.