
The irony is obvious to many of the commenters, understanding the threat starts with those three. It is the continuing follies of U.S. policy and our involvement in them, that make us a potential target for domestic terrorism — not some bogus perceived external threat.( pic above)

If you listen to what U.S. presidents say, they always invoke freedom, peace, democracy and human rights as they launch their brutal forays into other countries. However if you look at what the U.S. does in the world, then it is clear freedom, peace, democracy and human rights are irrelevant to U.S. policy.
The U.S. talks democracy, but doesn’t hesitate to cuddle up to brutal tyrants, nor to overthrow elected governments. Democracies were replaced by repressive and usually corrupt governments with power bases among the wealthy elites. The Chilean dictator Augusto Pinochet is among the most notorious for his reign of terror, involving torture, murder and “disappearances”, from 1973 until a popular uprising ousted him in 1990.
Iraq played no role in the 2001 attack on New York’s World Trade Centre, but President George W. Bush used the attack as an excuse to invade Iraq, which was allegedly harbouring Al Qaeda groups. Somewhere between 100,000 and 500,000 civilians are reported to have died as a result of the invasion and subsequent fighting, effectively retribution for the 3,000 who died in the WTC attack.
Meanwhile, Saudi Arabia, governed by a repressive family plutocracy, is maintained as a staunch ally of the U.S., even though it too is accused of supplying some groups in the Middle East accused of terrorism. The key, of course, is that Saudi Arabia hosts a large fraction of the world’s oil reserves.
Human-rights abuses are being cited as a prime reason for U.S. intervention, yet the U.S. saw no reason to intervene directly in other barbarities ‒ even including genocide ‒ in places like Cambodia from 1975-79, Rwanda in 1994, the civil wars in the Congo over a long period, in Liberia in the 1990s, and many other parts of Africa and the world.
The consistent factor in U.S. policy clearly is to defend or enhance U.S. “interests” — which means, in practice, the commercial interests of U.S. business. Oil underpins all the other interests. U.S. presidents have always allowed their foreign policy to be bounded by the interests of the country’s rich and powerful.
Why is this apparently so beyond the critical faculties of what passes for Australia’s political conversation? That the US is doing what’s always been normal and can’t afford it so coopts us. Iraq will pay for this excercise whatever the outcome.
The solution ‒ not easy, but clearly available ‒ is to desist from further military intervention. There will, unfortunately, continue to be violence within the Middle East, but the defensible course is to try, by nonviolent means, to reduce the violence as much as possible. Intelligence analyst Chelsea (formerly Bradley) Manning argues for the viability of such an approach
There is already an overwhelming case, from global warming, for a rapid shift away from oil to renewable, non-polluting sources of energy, such as solar-generated hydrogen. The further pursuit of control over oil is wrong-headed in every respect, not least because of its costs in blood and money.
As to the so-called leadership of Australia, it adds the spectacle of being a pathetic lap dog to all the US follies it chooses to be complicit in.