I agree. (even thouth I cant stand Snape!!!) He is loyal to the Order and more importantly -- He is loyal to Dumbledoor -- and although I would never trust Snape on his word alone I agree with Hermione -- "Dumbledoor trust Snape" and I trust Dumbledoor.

Snapes obvious distane for Harry and Pleasure at seeing him in trouble is more about James Potter than Harry. Snape just can't see past harry's father. That hatred runs too deep!