Extremist works at UK Home Office...

This is more serious than communists infiltrating the State Department.

A leading member of an extremist Islamic group is working as a senior official at the Home Office, it emerged.

Abid Javaid is a 'senior executive officer' in the IT department at the scandal-hit Immigration and Nationality Directorate which processes tens of thousands of asylum and visa applications every year.

But he is also an activist in the fundamentalist Islamic group Hizb-ut Tahrir which believes in a worldwide Islamic state under Shariah law.

This is despite Tony Blair calling for the group to be banned last year.

The group's smartly dressed spokesmen have caused repeated outrage over their refusal to condemn terrorist attacks including last year's London bombings.

One of their leaflets called for Jews to be murdered and for the destruction of Israel.

Another spokesman, Dr Imran Waheed, refused to condemn the July 7 suicide bombs, saying he would only do so after Western leaders apologise for the wars in Iraq and Afghanistan.