Excerpt:
David Cameron is facing embarrassment over the close links between a Government adviser on religion and an Islamist group placed under urgent investigation.
The Prime Minister last week ordered the security services to look into the Muslim Brotherhood amid fears its leaders, exiled from Egypt, are plotting terrorist attacks from London.
He said the inquiry would establish 'the complete picture' of the Brotherhood including its possible involvement with 'violent extremism' and its 'presence here in the UK'.