Could Russia be involved in German airport drone-bomb?

German airport drone-bomb: Could Russia be involved? As Germany investigates how a drone loaded with explosives reached a runway at Leipzig airport, there is renewed talk in Europe of hybrid war. The interior minister is warning of a new level of danger from an attack that may involve foreign powers. There is no proof at this stage to link the flying bomb directly to Russia, which denies any role. But as well as the means and the motive, Moscow does have form.