[14.04 64Bit] - Easiest Method To Encrypt An NTFS Hard Drive?

[Jesse Palser]

[14.04 64Bit] - Easiest Method To Encrypt An NTFS Hard Drive?

Hi,

Running Kubuntu 14.04 64Bit fully updated on my desktop.

I want to encrypt an NTFS hard disk drive now.
What is best/easiest method to encrypt 1TB NTFS HDD?
(would prefer a simple GUI program over something typed in Terminal)
My Kubuntu system drive is already encrypted which was done during O.S. 
install.

Any help would be greatly appreciated, thank you!

Jesse