Is Snape right about Remus

[Inge]

No: HPFGUIDX 135115

Lynn said:
"Well, actually, it could kill his furry rear end.  Remember, he's 
living with the werewolves and, since many are listening to Greyback, 
they could very easily be turned against him.  All it would take is a 
word from Snape."
SNIP

Inge:
As usual Im not around my books.... but the above made me think - how 
can Remus live with the werewolves as one of them? 
Wouldn't they know that he's not on their side? 
The werewolves are on Voldemort's side - and Voldemort knows that Remus 
is on the side of the Order (Pettigrew or Kreacher - yes, or even 
Snape! would have told him) - so how can Remus live among his kind -  
unharmed and trusted?