[Tfug] fsck question

[bigj at voipmogul.net]

So after a reboot my system decided it needed to fsck an ext3 volume 
used for data and it has found errors like this:

Pass 1: Checking inodes, blocks, and sizes
Inode 1245190 has illegal block(s).  Clear<y>?

In all my years I've just cleared the block but since this data has a 
little more importance I figured I would ask, should I be clearing this? 
My hunch is clearing that bad blocks will most likely ruin whatever data 
resided there. Correct? Any other actions I can take?

--
Jon