BW: This week a team of data security experts unveiled a new mobile app called Wickr. The app offers what its developers describe as “military-grade” encryption for data, but it also does something else: It allows users to make text messages, photos, and videos self-destruct. Messages sent through Wickr totally and irretrievably disappear from their recipients’ phones after a set period of time. Senders can customize the self-destruct deadline to be anything from six days down to a second (Phones, Software)