I'm astonished these actions aren't tried as Treason. They're extreme actions towards our Sovereign.
If an Australian citizen...25 yrs non parole. If rehabilitated maybe a good behaviour exit of 15 yrs. Beats a bullet to the heart.
If a non Australian citizen...instant deportation. Not negotiable.
The above applies regardless of race...colour or creed.
It makes one wonder if the explosions were truly imminent. A horror thought to imagine. Australia needs to adjust its laws radically to face this evil.