Marxism alone explained why capitalism's contradictions would deepen with growth of the productive forces.These contradictions have now combined to create three "uper-typhoons" threatening humanity.They are social,economic and political disintegration,already experienced in a growing number of capitalist countries;the consequent threat of global wars;and an accelerating world environmental crisis.The typhoons are beyond the capitalist class' s control.Together,they express the latest general crisis of capitalism.Only Marxism can point the way out.Liberalism in our movement must be combated.At the same time,we must win over workers who may have joined social-democratic organizations,in part because of our own weaknesses and errors.