John Scalzi and Brad DeLong have kicked off a serious debate about the different interpretations of Starship Troopers by Heinlein and Verhoeven. However, I think they are both neglecting the important critical interpretation by Sarah Brightman and Hot Gossip .
One reason Torchwood has been disappointing is that it's "Dr Who with shagging" premise isn't really enough to sustain it. Camp and sexist as it was, the original Star Trek did try to grapple with moral and societal dilemmas. A big part of the enormous power of the revived Dr Who series is that the Doctor lives by a moral code and stands by Rose without yielding to his temptations. They have you feeling the unrequited love of Madame de Pompadour and sympathy with a wounded Dalek. Torchwood's aimless bed-hopping is more like Katy Manning posing with a dalek.