The scientist brings a real flashlight and doesn't claim, yet at least, to have found any evidence of the cat. The scientist admits that the dark room is very large and the search isn't exhaustive. Also the scientist finds many very useful things besides the cat, such as electricity, for instance.
The conservative Christian refuses to bring a light to the dark room, proclaims he found the cat and if anyone questions the conservative, he slaps them around.
The liberal Christian often forgets to bring a light, but does bring it on occasion. He gives validity to many different modes of search for the cat and spends most of his time exclaiming how wonderful the cat is and how everyone should have a right to the cat.