A fiber line cut knocked out air traffic control systems at major East

The backbone of modern air traffic control is a network of radar systems, radio frequencies, and real-time data feeds that guide aircraft safely through shared airspace. These systems must operate continuously, reliably, and with near-perfect accuracy. To move the enormous volume of information required, airports and control facilities depend on physical infrastructure: fiber optic cables, copper lines, microwave towers, and redundant power systems. Most people assume that because aviation is critical infrastructure, these systems exist in some fortified, isolated bubble. In reality, they often share physical pathways with ordinary commercial internet and telecommunications lines, bundled together underground or strung across utility poles. Fiber optic cables transmit information as pulses of light through thin strands of glass. They can carry vastly more data than older copper wires and have become the standard for long-distance, high-capacity telecommunications since they became practical in the 1980s. A single fiber line cut can sever thousands of simultaneous connections. When a cable is damaged, repair crews must locate the break, access the damaged section, and physically splice the fiber back together. The process takes time, and until it is complete, service remains interrupted. Air traffic control systems have evolved over decades, originally built with redundancy in mind. The Federal Aviation Administration and airports invested in backup systems and alternative communication paths to prevent single points of failure. However, redundancy is expensive and complex to maintain, so not all pathways are equally robust everywhere. In many cases, a primary fiber route and a backup route may run very close to each other physically, or depend on the same utility corridor, or share poles and conduits. This creates a hidden vulnerability: a single digging accident, vehicle strike, or cable theft can sever both the main line and what was meant to be a backup. The digitization and consolidation of infrastructure has created efficiencies but also unexpected interdependencies. Decades ago, air traffic control voice communications and radar data traveled on separate, independent systems with their own physical cables. As technology advanced, systems became integrated, data-heavy, and more efficient, but often along fewer distinct pathways. Modern control towers and radar facilities need constant internet-like connectivity to push data to adjacent facilities, share flight information, and maintain situational awareness across a region. This is a fundamentally different architecture than the redundant, isolated systems of earlier eras. The vulnerability of buried and overhead cables to external damage is not new. Excavation accidents are the single largest cause of cable cuts, accounting for a significant portion of infrastructure outages each year. Construction crews, utility workers, and private excavators strike cables regularly, sometimes causing