liberals have a large job to do in revising their policies

USA liberals have a large job to do in revising their policies, as do European leftists. 

ie riots in France, Italy elects a right wing leader

Both will be energetic in doing so, though that may take some time. The Europeans, one should note, have yet to ‘discover’ the millions of young men and women – around 40 per cent in Italy, Spain and Greece – who can find no jobs.