In light of all the sovereign risk associated with Australia's trigger happy politicians who are happy to change their views to bolster voter support, on top of all the #@%$ the U industry is facing worldwide, destruction of SP and a Fukushima situation that never seems to resolve itself (or is unlikely be erased from public opinion soon).
It makes very litte sense for junior U explorers in Australia to stay in business or bother investing in U exploration/mining at all.