I found the following in a /var/log/secure log on a RHEL6 minimal installation:

PAM unable to dlopen(/lib64/security/pam_fprintd.so): /lib64/security/pam_fprintd.so: cannot open shared object file: No such file or directory

This is the PAM module to support finger print readers. In this installation, I do not need that functionality. To disable using the PAM module, I used the following command:

authconfig –disablefingerprint –update