Now we know where the wiki leaks came from. 
Basically its a trust issue. Shredded and crushed disks can't be read. Wiped disks end up on the "black market" not wiped ! Especially when some one tries to sell the idea of wiped disks or "we'll" wipe them for you and don't!
Dead/Crushed and shredded disks don't haunt governments!
Well, that is true, but there is a big difference between someone claiming to have wiped them but not and someone actually sitting down and wiping them
. When the drives are actually wiped, they are fine for reuse.
