What happened to Mark Hurd's SuperDome memory?

HP CEO Mark Hurd can't seem to recall much related to his company's spying campaign in his responses to questions from the House subcommittee. He could have said "on the advice of lawyers my memory is fuzzy." Perhaps it is, but he certainly has an ability to recall HP's operational numbers faster than an HP SuperDome. Maybe details about spying on journalists don't go into main memory. Whatever the case, Hurd still has a ways to go before he can just focus on posting profits.