Kiev’s agents planned to send explosive devices disguised as humanitarian aid, according to the security agency Russia’s Federal Security Service (FSB) has thwarted a Ukrainian plot to deliver over 500 improvised explosive devices (IED) disguised as heated shoe insoles to Russian military personnel, the agency announced on Tuesday. The FSB said a foreign national was detained in Moscow after retrieving a parcel containing 504 IEDs from a transport company. The shipment had been smuggled into