Plane ‘attack’ raises fresh security fears

“A central question for British and US authorities investigating the apparent attempt to blow up an airliner will be whether the perpetrator acted alone or as part of a wider conspiracy.

British authorities were first alerted to a possible domestic connection on Thursday night and have assigned teams to ascertain how strong that connection may be.

That will involve checking the identity of any individuals involved and seeing if they make any appearances on databases of possible suspects and extremists.

It is thought likely that the suspect had crossed the radar of UK security authorities, but not in a way that indicated he was planning any kind of attack or merited further surveillance. “

(BBC News – Plane ‘attack’ raises fresh security fears)