Fighting Citizenship Based Taxation:
The US practice of Citizenship Based Taxation is the source of the problems faced by US citizens living in Australia. Heitor David Pinto has written an essay outlining a legal argument that Citizenship Based Taxation is unconstitutional in the US. While the Australian government can do nothing to address this directly, there are organisations and people working to change this practice.
This page serves as a repository for opportunities to take action in the US. Please post links to relevant news stories and blog posts in the comments.