MI5: 'Over 3,000 extremists in UK'
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MI5 chief: 'Over 3,000 extremists in the UK'

Britain faces the highest rate of terror attacks in the last 30 years, with some plots hatched in just days, MI5's director general says.

Andrew Parker also told the BBC's Frank Gardner that 20 terrorist plots had been stopped in the last four years.

  • 17 Oct 2017
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