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Europe scrambles to identify terror threats

There could be as many as 20 sleeper cells of between 120 and 180 people ready to strike in France, Germany, Belgium and the Netherlands, a Western intelligence source has told CNN.

There could be as many as 20 sleeper cells of between 120 and 180 people ready to strike in France, Germany, Belgium and the Netherlands, a Western intelligence source has told CNN.

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Europe scrambles to identify terror threats

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