Sudo running without a password

[Kirk Strauser]

I'm using sudo-1.6.8.12_1 (the most recent version in ports) on my FreeBSD 
6.0-STABLE machine.  I'm having the problem that any command I try to run 
will execute as root regardless of what I enter for a password.  Example:

$ sudo -k        # To clear the timestamp
$ sudo whoami
Password: <anything I want>
root

In the second stamp, I can give my real password, a fake password, an empty 
string, or ctrl-C - all with the same results.

Here's my sudoers:

#############################3
Defaults:nagios   !syslog
User_Alias      DUMPADMINS = kirk
Runas_Alias     DUMPOP = operator
Cmnd_Alias      AMANDA = \
        /usr/local/sbin/amdump, \
        /usr/local/sbin/amstatus, \
        /usr/local/sbin/amadmin, \
        /usr/local/sbin/amcheck, \
        /usr/local/sbin/amlabel, \
        /usr/local/sbin/amflush, \
        /usr/bin/mt
Cmnd_Alias      NAGIOS_PLUGINS = \
        /usr/local/libexec/nagios/check_vinum_wrapper
root            ALL = (ALL) ALL
%wheel          ALL = (ALL) ALL
nagios          ALL = (root) NOPASSWD: NAGIOS_PLUGINS
DUMPADMINS      ALL = (DUMPOP) NOPASSWD: AMANDA
cricket         ALL = (root) NOPASSWD:/usr/local/sbin/mailerstats.py
#############################3

I don't see anything in it that looks like it should prompt me for a password, 
then run with elevated privileges regardless of what I send.  Any ideas?
-- 
Kirk Strauser
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