The writer had considered deleting the italics on the word not in the preceding sentence and revising did not to read as the contraction didn’t. If the writer had done this, the sentence would have lost its:
I. emphasis on the difference between Kari’s letter to her girlfriend and her letter to the cadet.
II. implication that this information was insignificant in the letter.
III. suggestion that this information would be critical later in the essay.

