An anonymous Japan Self-Defense Forces official told the Nikkei that the WC-135 radioactive particles sniffer plane has been deployed to Okinawa.
By Ken H / @chippyho [CC BY-SA 2.0], via Wikimedia Commons
The plane was suppose to arrive last month but had to make an emergency landing in Banda Aceh, Indonesia on Mar. 24 after one of its engines failed.