Quinlad,the US has a proven track record of not taking into account conditions such as Aspergers when trying people in courts of law. Google the name William Cottrell.
Gromit,people with Asperger Syndrome are not 'educationally subnormal',some are,but many are classed as genius' in many fields of academia.The fact that Gary McKinnon was employed as a systems analyst does not surprise me in the least. My own 12 year old son who has Asperger Syndrome could probably teach you a thing or two about history,he has certainly told his history teachers things that they didn't know beforehand but have since verified as being facts.
I am not advocating that Mr McKinnon get off scot free for his crime,I just don't trust the US judicial system to treat him fairly and take into account his Asperger Syndrome.