What did making eye contact with Dumbledore have to do with it?

[potioncat]

No: HPFGUIDX 99698

Ally asked:
> 
> I have a hard time believing that the risk to the Order and Harry 
was 
> less if Snape, as opposed to DD, taught him.  Can anyone help me 
out 
> here?

Potioncat:
Thank you!!!  I've asked this too.  It seems to me that this puts 
Snape at risk twice.  If LV should see into Harry's mind that Snape 
was teaching him, or if LV should see into Snape's head that the 
lessons were going on.  

I don't, however, think the pensieve was a set up. (I don't think 
that was in this post, but it has come up recently.)
Potioncat