Giving a user root priveleges?

[Zachary Uram <netrek@gmail.com>]

I edited /etc/sudoers file and added:

user    ALL=(ALL) ALL

But when I try to sudo as that user to root I get error:

$ sudo su root

We trust you have received the usual lecture from the local System
Administrator. It usually boils down to these three things:

    #1) Respect the privacy of others.
    #2) Think before you type.
    #3) With great power comes great responsibility.

[sudo] password for zu22:
Sorry, try again.
[sudo] password for zu22:
sudo: pam_authenticate: Conversation error

How can I fix this?

Zach