Quarter-Mile Radius: Why Prison Jamming Failed Before

Between 2011 and 2015, the FCC quietly authorized the federal Bureau of Prisons to test signal jammers at multiple facilities, including Terre Haute FCI in Indiana. The stated goal was absolute: stop the flow of contraband cellphones that incarcerated people use to continue criminal operations, coordinate escapes. Harass witnesses from inside. It sounded like a technical problem waiting for a technical solution.

It was neither. The jammer at Terre Haute worked exactly as predicted by physics — it jammed signals in a roughly quarter-mile radius from the prison. That radius included neighborhoods. Residents reported losing cell service in their homes. The spillover created an immediate legal exposure no official wanted to defend, let alone scale across the nation's federal prison system.

The deeper failure was quieter. Even with jammers operating, incarcerated people still obtained phones. Not because the technology malfunctioned, but because jamming never solved the underlying smuggling problem. Visitors smuggled them past guards. Staff sold them. They arrived in food deliveries, hidden in packages, sewn into clothing. The jammer could blanket the airwaves and phones still made it through the fence. By 2016, the pilot was over. The FCC moved on. Carr's sudden advocacy for expanded jamming resurrects a policy that failed on both fronts — the technology leaked beyond prison grounds and the technology never worked anyway. Without once addressing why either failure should be ignored this time.

What this actually does: it severs families from incarcerated relatives for hours at a time. A mother calling her son at Terre Haute during the pilot sometimes found her phone dead mid-sentence. She did not work for the prison. She lived in the spillover zone. The contraband phones that officials were chasing still functioned because they worked on a different technical path. Or because visitors brought them. Or because the system that smuggles them is older and more distributed than any single frequency can solve. The jamming stopped her calls instead.

Copying a failed experiment without addressing why it failed means choosing the familiar harms over the unknown ones. Carr is asking for permission to do something already tried, already documented as catastrophic to surrounding communities. Already proven ineffective at the stated goal. The silence on the pilot's failure is not accidental. It means the FCC is prepared to resurrect a policy because the politics require it, not because anyone believes it will work.