It is very hard to diagnose light brain injuries. The problem is that no one knows what a healthy brain should look like because we are all different so (unless

It is very hard to diagnose light brain injuries. The problem is that no one knows what a healthy brain should look like because we are all different so (unless you have before and after images) you can't say if a brain is injured. Another problem is that the neurologists making their judgement likely were primed - they know that something was wrong with the brains in the images so they looked for exactly that. This blog post explains these issues in more detail: http://blogs.discovermagazine.com/neuroskeptic/2018/04/07/bad-science-havana-attack/#.XYP-QSgzY2y http://blogs.discovermagazine.com/neuroskeptic/2018/04/07/ba... That said, it would be very interesting if they can show brain injuries from exposure to common pesticides. I wonder what impact such result would have on millions of farm workers or even on people living close to highways.