A US Air Force ‘sniffer’ plane which took off from Sussex today was on a mission to find evidence of nuclear activity or explosion, according to strong rumours. The WC-135 Constant Phoenix, which is specially modified to collect atmospheric samples, flew out of RAF Mildenhall on operational sorties. The specialist equipment enables the crew to detect radioactive debris ‘clouds’ in real time is believed to be heading towards northern Europe and the Barents Sea.  News of

the deployment comes amid claims Russia may be testing nuclear weapons, either to the east or in the arctic, after a spike in radioactivity was reported.  According to spotters a second ‘spy’ plane was also deployed from Mildenhall. It is not the first time the Constant Phoenix has visited the British airbase, but the latest deployment reflects growing concern about an alleged spike in iodine levels recorded in northern Europe. READ MORE