How to obliterate a PGP Encrypted Disk - Partition and DATA

I really had a difficult time getting PGP to go away - I was using FDISK on my MAC but while it looked like it was making changes, it did not.

I tried Darik's Boot and Nuke - you can Google that - and it killed everything the disk.  I had no trouble after that using TrueCrypt (you can google that too) to encrypt the whole drive.