Who were the Potters?

[Liz]

No: HPFGUIDX 45888

I've been reading the recent posts on Sirius and Lupin, regarding 
them suspecting each other as being the spy for Voldemort, and it's 
really got me wondering about James and Lily Potter.  First off, 
yeah, this has probably been done to death (we can only say so much 
till book five is out) but I don't think it has been in awhile, and 
it's very much on my mind.  

OK, so Dumbledore suspected there was spy in the ranks, Sirius 
suspected there was a spy, everyone did, you know, but why is it that 
the innocence of James and Lily is never questioned?  I'm not at all 
meaning that in the sense that I think they weren't innocent; I just 
want to know what it is about them, what did they do, that puts them 
above reproach.  

I know that because Dumbledore had his own spies, he knew that 
Voldemort was after the Potters - so obviously no one would suspect 
James or Lily for being the spy when it is them that are needing 
protection.  Still, though, in general?  If things were as uneasy at 
that time as they sound, what is the deal with the Potters that no 
one would ever suspect them of anything?  And, of course, the other 
obvious nagging question, why was Voldemort targetting them in the 
first place?  Either Dumbledore and his crew could understand why the 
Potters would be targeted, and we the readers just don't know it yet, 
or it was a mystery, in which case I'd think that Dumbledore would 
wonder why the Potters would be such specific targets.

I don't have any suggestions or theories, just questions that are 
bugging me.  Any ideas?

Lizbot