Brain scans that can read a person’s secret intentions even before they act have been demonstrated by researchers.

In a recent study, the technology was 70% accurate at predicting whether participants planned to add or subtract a pair of numbers. Paralysed people may one day be able to use devices based on the technique to carry out complex actions, the researchers say. However, ethical concerns have been raised about its possible use in interrogation.

http://www.newscientist.com/article.ns?id=dn11144

[Great news! Technology like this in public usage will make the world so much safer place to live: just think wrong and we're ready to get you treated before anyone is wronged.]