That being the case, how does he know we've been "taken over"?
...because the aliens visited The Sean previously.
FreeRepublic is the idealized (read "extreme") America that would exist if socialists, anarchists, communists, liberals, atheists, agnostics feminists, IRA supporters, union members, left-wing university professors, Al Queada Supporters, etc were banished!
Long Live Jim Robinson and the FreeRepublic. Hoo-Yah!