An interesting post on the prospect and implications of mind reading machines

[GilZ]

I just found this blog in Wired on a recent study that claims that it
is possible to determine what people look at by looking at their brain
signals. Although not a mind-reading machine, the blog discusses
ethical implications and links to the entry in Nature.

http://blog.wired.com/wiredscience/2008/03/mind-reading-ma.html

Gilberto.