Army officials have failed to gauge soldiers' willingness to use the Integrated Visual Augmentation System, which could severely limit the technology when it is fielded, according to a new report by the Defense Department inspector general. “Procuring IVAS without attaining user acceptance could result in wasting up to $21.88 billion in taxpayer funds to field a system that Soldiers may not want to use,” the report states. But the Army fired back in its comments on an earlier version of...