Limping through the first crucial sitting of the Parliament in an election year, members of the Rudd Government are a worried bunch, with marginal seat-holders fearing the worst, and others developing doubts about the capacity of the Prime Minister to lead them over the long term.A Federal Government taskforce has torpedoed the idea of new dams for a northern Australia food-bowl, because the Labor governments in the three states concerned had a no-dams policy.The report by the Northern Australia…