The whole point of snake robotics is that one motor being a defect shouldn't render the entire robot useless. Of course that depends on intelligent control syst

The whole point of snake robotics is that one motor being a defect shouldn't render the entire robot useless. Of course that depends on intelligent control systems (algorithmic or mechanical) that can deal with limitations on any of the joints, without explicit damage sensors. As for vandalism or getting driven over, well, that's not really a vulnerability exclusive to this approach.