A question about Tom

[BravoNine]

Okay, I was thinking of this because I was working on my Spooks fanfic, but does Tom know what happened to his old teammates since he left?

I know that Tom and Christine are married and he has his own private security firm, but does Tom know about the fate of Danny, Zoe, Colin, and everyone he left behind at MI5? Does he know that Lucas returned from his imprisonment in Russia and has now gone psychotic?

I've always been curious, surely old MI5 officers still know something? Malcolm didn't seem surprise not to see Ros on the Grid.....