http://www.businessinsider.com.au/samata-ullah-charged-helpi...
https://www.theguardian.com/uk-news/2016/oct/04/man-arrested...
http://www.bbc.com/news/uk-wales-south-east-wales-37561088
Not much specific information on the what and why, but this isn't a scenario of 'guy uses ssl therefore is terrorist' as the first article leads me to believe.
A man arrested by police on a Cardiff street has been charged with carrying instructions on guided missiles and a computer storage device disguised as a cufflink in pursuit of Islamic State’s campaign of terrorism. Samata Ullah, 33, who was arrested last month.
https://www.theguardian.com/uk-news/2016/oct/04/man-arrested...
That sentence is terrorism. Who teaches journalists to write nowadays? YouTube?