An example how a powerful agency can unwittingly expose sensitive documents. a closer look what happened. >> boris and amara, the pentagon confirmed to cnn it should have known about a data leak coming from one of its email servers well before it did. it took two weeks for the department of defense to realize that a trove of unclassified emails were sitting on the open internet and when the cybersecurity researcher came to the pentagon to alert them to that, that's only when they found out about that. now, it's not that uncommon for computer servers to be exposing data at big organizations but...