Something sweet to cleanse the news palate after a day spent digesting Penn State dreck. This isn’t a full interview, just a teaser for next week’s blockbuster, but there are three solid shocks in the span of three minutes — first the archival footage of how engaging Giffords was before the shooting, then the home video of her in her hospital bed in the aftermath, and finally how far she’s come physically since then. She looks terrific, but as I say, this is just a teaser: You’ll hear her speak only a few words, so the verdict on how much of her personality is left will have to wait until next week. A riveting video, though. Don’t miss it.