The truth behind them. Here, the government has set out a new definition of extremism. Its part of its promise to tackle what is says is an increased threat since the hamas attacks in israel last october. Several groups were named in parliament as possibly facing restrictions under the new definition. Concerns have been raised that it could be seen as unfair and under erratic. With the details, heres our Political Correspondent peter saull. This has become a regular sight at weekends in our cities, thousands of people taking to the streets in protest at israels actions in gaza. The current conflict in the middle east has prompted a political debate notjust about the fighting there, but about the impact on Community Cohesion here. In recent weeks and months, we have seen a shocking increase in extremist disruption and criminality. In a surprise speech two weeks ago, the Prime Minister warned that extremists were trying to tear us apart. Who exactly are these so called extremists . Well