A liberal Democratic society using repressive powers is an oxymoron.
It would be more accurate to say a conservative republican society employing state powers.
Let's not forget that liberal Democrats, using politically correct laws, are those who insist that there be no profiling of middle eastern men; that grandmothers are searched at airports to provide "balanced" searches.
Let's not forget the liberal Democratic NY Times who publishes every American soldier's death, and minimizes the deaths of Iraqi terrorists.
And, let's not forget that it was a liberal Democratic president who pooh-poohed the capture of Bin Laden before 9/11.
A liberal democratic society is a society bent on self destruction, and hasn't the capacity for self defense no matter how many liberties are put on hold.
Noachian; "liberal democratic" (lower case) does not mean Liberal Democratic (as in party affiliation). We are a liberal, democratic society - even as a republic.