Only now, it does get worrisome?!

"... Of these, some have perished on Syria’s battlefields, such as 41-year-old Abdul Waheed Majeed, a father of three from Crawley who blew himself up after driving a truck packed with high explosives into a Syrian prison this year. Others, having experienced the brutality of a conflict where captured fighters are routinely decapitated in public and their heads paraded on sticks, decide that the rigours of jihad are not for them, and opt for returning home to lead a normal life.But, so far as our national security is concerned, the real problem centres on the hard core of British jihadis – those who return to Britain as hardened fighters fully versed in the latest terrorism techniques...."