Ants in Their Pants?

Native flesh-eating ants have been suggested as a novel solution to the Cane toad problem in Australia (http://www.guardian.co.uk/world/2009/apr/03/meat-ants-cane-toad-cull-australia). The poisonous (a protection) Cane toad was introduced in the 1930s as a biological control for a sugar cane beetle that was destroying crops. The beetle survived but many indigenous Australian species including freshwater crocodiles, a marsupial cat (the Quolla), the Yellow-spotted goanna (a lizard) and several snake species have been seriously endangered by their attempts to consume the toad. Professor Rick Shine has suggested enlisting the aid of local meat-eating ants (Iridomyrmex purpureus) to rid Aussies of the toad. Although the story has received lots of attention (and there is a video of ants tackling a small toad), a) Australia does not have a great record in its biological control attempts and b) there are many locations in Australia where the toad and the ant are unlikely to meet. It seems to me that there is a bit of wild optimism underpinning this suggestion.