Brain-Machine-Interfaces - brain manipulation or brain control?

Brain-Machine-Interface technology is only in its infancy, but scientists believe it may one day allow the severely disabled to perform everyday tasks using brain signals to power artificial limbs. But some US tech companies have more ambitious interests. They envision a future where BMI will allow them to read people’s thoughts; and where humans will use mind power to interact with their digital devices. It’s an exciting field, but one fraught with ethical concerns.