Oh? They finally unblanked Faslane?
Nothing really that secret about it, and if any terrorists tries to get in there, they'll find themselves on the wrong end of a Royal Marine or SBS, and that's not somewhere I'd be for love nor money. Besides, Bangor is on Google Earth IIRC, and no terrorists have bombed that, stupid Sun newspaper
BTW, there's some more old British boomers over near Edinburgh waiting to be cut up, old Resolution class SSBNs, they're on Windows Earth or whatever its called on aircraft view too: