It’s fun to look for what’s missing in a memoir; the forgotten egos, the policy howlers buried for posterity. Some omissions are accidental. When Tony Blair published his autobiography in 2010, he raised eyebrows by neglecting to mention his celebrated blue-skies thinker, John Birt. Over more than 700 pages, For the Record is punctilious and dutiful in name-checking the many fallen Cameroonian foot-soldiers who sacrificed themselves in the cause of Conservative modernisation.