At the time of his detention, Mr Fogle was wearing a blond wig and reportedly carrying a large sum of money, as well as technical devices and written instructions for the Russian agent he had tried to recruit.
As well as carrying out run-of-the-mill duties at the foreign ministry, he worked as an agent of Czech military intelligence under the codename Salima, responsible for the assignments of military spies under diplomatic cover.
The only way to eliminate any risk of cross-infection in the aircraft cabin -- or the rapid worldwide spread of an infectious agent -- is to prevent would-be passengers who are either substantially exposed to or carrying transmissible infections from flying.