It may also be a minorerror of judgment on Mr Rogan's part to have relied so heavily on Hassanein Heikal, an Egyptian journalist, for his account of Anwar Sadat.
When questioned about the mistake during a visit to an Edinburgh school later in the morning, Mr McConnell described the error as "minor" and said it had now been corrected.
There are recordings of all of his remarks, and the only minor inaccuracy in any quote I attributed to him was the result of an error in the transcript supplied to me by Time.