a Very Bad Thing. The Unification Church is on their shit list of Dangerous Cults, along with Hare Krishna, Scientology, the Jehovah's Witnesses, and (giggle) Secular Humanism.
One of my most successful encounters with a fundamentalist came when I informed an acquaintance that the Left Behind books she gobbled up so eagerly were written by a man with strong connections with the Moonies.
Her eyes seemed to double in size, and I referred her to the websites that detail the connections.
We should be mentioning the Moonie entanglements at every turn.
Another good source for their various connections is
http://www.freedomofmind.com/resourcecenter/groups/m/moonies/front_groups.htm#businesses%20US