OOP - Death Eaters: Still unanswered from GOF - slight spoilers

[aliveandkickingjustabout]

No: HPFGUIDX 62880


> 
> My assumption has also been that DD's task for Snape at the end of 
GoF
> was to return to LV and resume his role as spy.  Given LV's somewhat
> unforgiving nature, it makes you wonder what Snape had to go through
> when he returned - I imagine he would have been made to suffer the
> Cruciatus curse as punishment for his "cowardice".



if snape had gone back to voldemort why was he teaching harry 
occulumency? voldemort would find out through harry?