The Sept. 11 bombings killed almost 3,000 Americans. But if you exclude that unique event for the last two decades of terrorist activity, a different picture of US vulnerability appears.
Militant far-right groups are always looking to appear legitimate and to recruit more Americans to their causes.
The belief in so-called 'white genocide', once an extreme-right view of neo-Nazis, is starting to gain ground in Australia and influence the rhetoric of politicians.
Gavin McInnes will be the latest in a string of provocative, right-wing speakers to visit Australia. Each tour pushes the public debate further to the right, with more scope for conflict.