Do you ever draw a blank?
This special magnet interferes with the brain's ability to produce speech. Doubtless, the right kind of magnetic activity can also *force* speech of a kind you did not intend. Does this constitute consent or lack of dissent or opinion? No! Only a grossly equipped Blackwater torture agent would think so!
This raises the striking concept of living electromagnetic fields using this kind of interference and the others that it shows must be possible on living humans and other neural networks. A living electromagnetic field with the ability to spend a few amperes of energy to stifle speech could effectively manipulate human social interaction and change the potential course of human history.
At what distance can this effect be generated?