Smart, rollable, mini-pallet cargo container system comprising robust, auditable, secure, sealable, lockable, trackable and pollable, universal, half/quarter-sized boxes particularly useful for moving highly valuable or sensitive, personal, political, military or commercial materials, embodiments include truly verifiable ballot boxes, verifiably secure moving containers. Blast attenuation inserts are disclosed. The boxes include electronic locks containing event memory, sensors and alarms, and RF communications and GPS locator module(s) that radio to a base station the time, location and status of the inventive box, and anomalous events as they occur, including unauthorized attempts to open or break into the container, or potential damage events. In addition, both the locks and comm modules are programmable, and provide extensive, and selectably pollable and down-loadable, printable event, access and transport history and audit trails. The comm system permits remote tracking and real time status check via the Internet, LAN or WAN wireless networks.