I wonder, at which point do we get to MAVs that are so small and agile that a room full of 300 humans could not grab even one of 300 mavs even if they tried really hard.

In other words every time the MAV sees something coming at it, it redirects is flight in microseconds to avoid it, like a fly. Imagine such swarms infiltrating any size crowd without ever getting caught.

You could incapacitate a whole crowd via MAVs landing and causing electroshocks. Or administering a pathogen.

http://voices.nationalgeographic.com/2014/04/10/insects-frui...