In 2000, this magazine dipped its toe in murky Irish water. Stephen Glover wrote three articles, one provocatively entitled ‘The Republican cell at the heart of the Guardian’. (For more detail, see Douglas Murray’s article.) One of the IRA supporters identified was Roy Greenslade, the paper’s media commentator. Alan Rusbridger, the Guardian’s editor, wrote angrily to the then editor, Boris Johnson, demanding an apology.