New Scientist is carrying this extremely interesting new development in brain research:

Brain implants have been used to "read the minds" of monkeys to predict what they are about to do and even how enthusiastic they are about doing it.

It is the first time such high level cognitive brain signals have been decoded and could ultimately lead to more natural thought-activated prosthetic devices for people with paralysis, says Richard Andersen project leader at the California Institute of Technology, in Pasadena, US.

Of course, the foil hat brigade will be far more interested in the other obvious "use" such a technology could be used for. Because you know most people are all about having electrodes implanted in their brains just so the government can find out what they're looking at.