1TB My Passport drive cannot be formatted

You can try do a low level format, then try to reformat it.  If still fails you may contact WD for a replacement.

How to low level format:  http://wdc.custhelp.com/app/answers/detail/a_id/1211/session/L3RpbWUvMTMyODk3MTM4Ny9zaWQvSmJSdl9xUWs%3D