DANA GOWARD: It would ripple through society like a horrendous damaging tidal wave. NATE HEGYI, BYLINE: That is Dana Goward. He is the president of the Resilient Navigation and Timing Foundation.

GPS jamming and spoofing attacks are on the rise. If the global navigation system the US relies on were to go down entirely, it would send the world into unprecedented chaos.

DANA GOWARD: It would ripple through society like a horrendous damaging tidal wave. NATE HEGYI, BYLINE: That is Dana Goward. He is the president of the Resilient Navigation and Timing Foundation.

DANA GOWARD: It would ripple through society like a horrendous damaging tidal wave. NATE HEGYI, BYLINE: That is Dana Goward. He is the president of the Resilient Navigation and Timing Foundation.

DANA GOWARD: It would ripple through society like a horrendous damaging tidal wave. NATE HEGYI, BYLINE: That is Dana Goward. He is the president of the Resilient Navigation and Timing Foundation.

A total outage of GPS could cost the country at least $1 billion a day. And there's no backup. Russia and China have backups, but the U.S. doesn’t.

A total outage of GPS could cost the country at least $1 billion a day. And there's no backup. Russia and China have backups, but the U.S. doesn’t.

A total outage of GPS could cost the country at least $1 billion a day. And there's no backup. Russia and China have backups, but the U.S. doesn’t.

A total outage of GPS could cost the country at least $1 billion a day. And there's no backup. Russia and China have backups, but the U.S. doesn’t.

A total outage of GPS could cost the country at least $1 billion a day. And there's no backup. Russia and China have backups, but the U.S. doesn’t.