THREE jihadist attacks in Britain in as many months have led to a flood of suggestions about how to fight terrorism, from more police and harsher jail sentences to new legal powers. But one idea has gained momentum in both Europe and America-that internet firms are doing the jihadists' work for them. Technology giants, such as Google and Facebook, are accused of turning a blind eye to violent online propaganda and other platforms of allowing terrorists to communicate with each other out of reach of the intelligence services.
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