Hermione talked about the cruciatus and the word carved into her arm while looking at the table, and Harry held her hand.  Ron talked about leaving in anger, but not about what caused it, and Harry and Hermione didn’t expand on it.  Harry didn’t elaborate on why he didn’t die in the face of an  avada, but he did talk about the wand lore of his and Voldemort’s duel, and Hermione and Ron didn’t add more.  The things brushed over were things they hadn’t had a chance to discuss with themselves yet, a debrief with a muggle President was not the place to do so.