Simple handling of
 UNCLASSIFIED
 RESTRICTED
 CONFIDENTIAL
 SECRET
 TOP SECRET

To use:
cp setrans.conf /etc/selinux/mls/setrans.conf
cp secolor.conf /etc/selinux/mls/
run_init /etc/init.d/mcstrans restart

To test:
/usr/share/mcstrans/util/mlstrans-test urcsts.test
/usr/share/mcstrans/util/mlscolor-test urcsts.color