Yeah, it's obviously CG. You're kind of dumb for feeling the need to point that out.

Any size drone can be shot down, and the smaller a drone is, the easier it is to take out of the sky.

Larger drones can carry payloads, actually be bullet proof and have enough mass to handle the force of wind and projectiles, etc.

Turning a ceiling fan on will render microdrones useless.

Smart dust isn't very smart. It doesn't even promise any new capabilities.

Do some more critical thinking, so as not to be considered totally retarded.