My understanding of western law is that things are ok unless law forbids it. So they are operating in an area that under _current_ laws is ok but because of what may be at stake many wish the current laws were different and are willing to use litigation and lobby efforts to that end.
This is NOT IN REPLY TO YOU but a general observation: Imagine the litigation that will happen when brain implants enable brain to brain sharing sensations and thoughts. Imagine the horrible copyright abuse! How will the publishing industry and sports industry and Hollywood control the rampart piracy?!?