MI5 tracking '30 UK terror plots'

BBC NEWS : "MI5 knows of 30 terror plots threatening the UK and is keeping 1,600 individuals under surveillance, the security service's head has said.

Dame Eliza Manningham-Buller warned the threat was 'serious' and 'growing'.

She said future attacks could be chemical or nuclear and that many of the plots were linked to al-Qaeda.

Prime Minister Tony Blair said the terrorist threat was 'very real' and spoke of 'poisonous propaganda' warping the minds of young people."