A fresh expulsion of extremists from Britain is being planned as part of the government's clampdown on 'preachers of hate'.
Home Secretary Charles Clarke plans to move against scores of militants accused of stirring up hatred as soon as new immigration rules come into force at the weekend.
Clarke said on Monday that further expulsions were imminent and that it would be 'absolutely foolish' to assume that there would not be a third terrorist attack in London.
"Now we are consulting on the list of unacceptable behaviours and that consultation ends on August 19. After that we will still be looking at further steps that need to be taken to ensure that those people who are working against the interests of this country are properly dealt with," he said.
The security services and immigration officials have drawn up a list of foreign extremists to be deported. Many are understood to be young clerics who have come in recent years from Pakistan and north Africa.
These so-called preachers of hate are not as well known as clerics such as Abu Qatada and Omar Bakri Mohammed, but are seen as stirring up hatred and extremism among young followers.
Muslim leaders have been consulted about a number of suspects who are expected to be arrested shortly. Their identities are being kept secret for fear that the men may go into hiding before arrests can be made.
The list is expected to include owners of radical Islamic bookshops, writers, a number of teachers and website operators of different nationalities.
Clarke spoke of further action against extremists after visiting the Metropolitan Police on Monday -- his first day back at the Home Office since returning at the weekend from a holiday in the United States.
He said that the government would continue looking at people in this country whose presence was not conducive to the public good.
While on holiday Clarke ordered the deportation of 10 Islamic extremists. Among them is Qatada, 44, described as Al Qaeda's spiritual ambassador in Europe.
The home secretary also banned the extremist cleric Bakri from Britain and stripped him of his leave to remain in the country.
A two-week consultation period which ends on Friday will allow the government to introduce new rules to exclude people from Britain.
In future unacceptable behaviour will include fomenting terrorism or seeking to provoke others to terror, justifying terrorism, fomenting other serious criminal activity, fostering hatred which may lead to intra-community violence,
advocating violence in support of particular beliefs and expressing what the government considers to be extreme views conflicting with Britain's culture of tolerance.
Twenty-five foreign terrorist organisations and 14 in northern Ireland are on the official list of groups banned in Britain. Proscription means that a group is outlawed and that it is illegal for it to operate.
