I'm the author of the ASHFALL three-and-a-half-ology: ASHFALL, ASHEN WINTER, SUNRISE, and DARLA'S STORY.
Page 20 and 21 of Condoleezza Rice's memoir, Extraordinary, Ordinary People. I find this quote hysterical because the subjunctive is a mood, not a tense. Rice's mother would no doubt be less amused than I.