False sense of security in devices that guarantee security is worse than no security at all. One device used by personnel who require communication security is goTenna Pro radio that creates an "off-the-grid" encrypted mobile mesh network.This network does not require any traditional cellular or satellite infrastructure and they may be found locally in your community. The datasheet says it is using AES-256 encryption. Has anyone bothered to verify that it is being implemented in the most secure manner?