LONDON , England ( CNN ) -- The threat from terrorists using chemical , biological and even nuclear weapons is growing , Britain said Tuesday , warning advances in technology will enable extremists to conduct more lethal attacks in the future . Muslim extremists killed 52 people in bomb attacks in London in July 2005 . The predictions came as Prime Minister Gordon Brown 's government 's laid out its anti-terrorism policies and strategy in a document containing previously-classified information . In it the government also warned that although the al Qaeda organization of Osama bin Laden , was likely to fragment in coming years , the group 's ideology will live on . Under the strategy Britain , where 52 people were killed by home-grown Muslim extremists in July 2005 bomb attacks on London 's transit network , says it needs to focus on longer-term causes of terrorism . It says the current threat to Britain and its interests comes primarily from four interrelated sources : . It says some of the factors that sustain terrorism today are likely to persist in the future -- such as conflicts exploited by terrorist groups that show no signs of abating , and evolving technology that enables terrorist acts . Other trends , however , will constrain terrorist groups , such as being short of money and funding and having their ideology rejected by Muslims across the Islamic world , the government said . As part of its strategy to prevent terrorism , the government will openly challenge views that could encourage violence , may `` undermine our shared values '' and `` jeopardize community cohesion , '' the government said . `` We have no intention of outlawing these views or criminalizing those who hold them , '' the report says . `` Freedom of thought and speech are rights which are fundamental to our society . But we will not hear these views in silence . We should all stand up for our shared values and not concede the floor to those who dismiss them . '' The report says everyone -- government , citizens , and communities -- must challenge those who `` dismiss our shared values . '' British government officials plan to work alongside Muslim scholars , faith groups and influential people to challenge the ideologies that support extremism , the report said . The government even plans to sponsor the wider teaching of Islam and religious education , and develop citizenship education in mosque schools . Those who are vulnerable to radicalism are also a target of the government 's plan . There will be programs for mentoring , diversionary activities and leadership training as well as more intensive intervention for those who have already been drawn into violent extremist networks , the government said .
New trends : al Qaeda will fragment but ideology will live on . Terrorists more likely to take advantage of new opportunities in future . Financial security likely to restrain some terrorists .