Nowadays, the majority of US-based newsrooms rely on primarily consumer-facing applications to facilitate secure communications with sources. Usage of tools like Signal, WhatsApp, Threema, and others, have spiked in usage as the most state-of-the-art way to ensure confidential conversations with at-risk leakers and whistleblowers. Documents flood newsrooms, sometimes in gigabytes at a time, and journalists need tools to interrogate that data in relative safety from device compromise, legal …