Mark T. al-Rahman
The case of Mark Taylor, or Mark T. al-Rahman, is an interesting one.
You have to trust the PM and the SIS presumably, when they say Mr Taylor is no threat.
However the official explanation he gave of trying to attend a wedding, for his attempt to enter an al-Qaeda military camp in Pakistan has always been highly dubious.
But it is innocent until proven guilty and as Mr Taylor says, he has not been charged with any offence. But having said that, I’d be a bit nervous if he moved in next door to me!