U.S. officials told NBC News, the U.S. continues to take active measures to prepare for the possibility of a nuclear test by North Korea. These include the deployment of a special nuclear “sniffer” aircraft, drones, and U-2 spy planes.
The U.S. Air Force’s special sniffer plane known as a WC 135 is capable of detecting evidence of a nuclear explosion.
In a statement, the Air Force said it “has been deployed on a routine mission to Northeast Asia. These missions are planned well in advance.”
The Air Force said that the WC 135 flies about 150 missions annually at various locations around the world.
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