At a press conference last week, Instagram unveiled a new feature for its mobile apps called Instagram Direct. With messaging apps having been identified as the next big thing du jour, Instagram finally decided it was time to get in on the action. Instagram Direct is a private messaging service built into Instagram’s existing mobile apps, meaning after a simple update, almost every Instagram user out there has instant access to the service. Users can send photos and videos privately, and then exchange text messages from within the app as well. But what happens when you inevitably have second thoughts after sharing a photo or video privately? Luckily, “unsending” an Instagram Direct message could not be easier. As noted in