fsck on FAT32 filesystem?

[Carmel]

On Thu, 19 Jul 2012 10:15:17 +0200 (CEST)
Wojciech Puchar articulated:

> >  1) There's a _reason_ the gov't requires hard drives with anthing
> > higher than 'somewhat' classified data on them to be =physically=
> > destroyed before leving the secure area.
> 
> no. for modern hard drives it was already proved that
> 
> dd if=/dev/zero of=/dev/disk bs=1m
> 
> is enough to make data unreadable.
> 
> for very old drives it may not

Would you be so kind as to point out the proof of that statement?
Please provide an address or location where the documentation
supporting that statement can be found. By the way, "NOT READABLE" is
not equal to "UNRECOVERABLE".

-- 
Carmel ✌
carmel_ny at hotmail.com