Falsifiability, especially in rhetoric (via a continually reinforced argument) is a good starting point. As to 'science', the Science Wars, have they been won or lost and by whom?
I would agree that falsifiability has it's place in science, but it is not the only element that qualifies it as such. Furthermore, much of what is posited by evoluionists as "falsifiable" is no such thing. The attitude ought to be "no options left out." I don't see that attitude in those who use the courts to enforce a particular, unproven, view of world history.