Parsel tongue (has this been asked?)

[laura]

No: HPFGUIDX 147534

I apologise if this has already been discussed and answered....

....Can Dumbledore speak Parsel Tongue? I was re-reading HBP (again) 
and when DD and HP go into Bob Ogden's memory DD asks Harry if he can 
understand Marvolo and Morfin...he doesn't ask for a translation, nor 
does he indicate that he doesn't understand!!

Can Parsel Tongue be learned? If so..then why in CoS was it such a big 
deal the HP could speak it(besides the obvious!!)

Sorry again if this has already been covered!!!

Laura