Nanoterrorism is the illegal and uncontrollable manufacture or use of extremely aggressive objects of nanochemistry and nanotechnology (nanoweapon, nanosensors) as an instrument of a terrorist mental or psychological control. The nanoecological threat is connected to the uncontrollable distribution and purposeful influence of synthesized nanodimensional objects (nanostructures, nanoparticles and nanophases), which are easily capable of penetrating an organism of a human being and selectively reaching any human organ. The nanotechnological threat is connected to the creation of practically invisible (by modern means) nanoweapons, capable also of damaging separate human organs. The nanodemocratic threat is an inevitable result of the creation and use of nanosensors as the control and management of consciousness and the intelligence of the person.