After upgrading to redhat-6.0, the user's .inputrc files
stopped working.

Investigatigation revealed that INPUTRC is set in
/etc/profile, pointing to /etc/inputrc.

Worse, it assumes everybody want's editing-mode-emacs.
Even "Fixing it" by submitting "set -o vi" does not work,
because the key bindings in /etc/inputrc break
vi-editing-mode.

Most people know vi, not emacs. So it is a mystery to me why
you want to force emacs mode in bash, and even prevent the
bash builtin 'set -o vi' to work.