Source: Ya Libna - Lebanese News Agency
Melbourne - Australian police said Tuesday they have thwarted a terrorist plot in which extremists with ties to an al-Qaida-linked Somali Islamist group planned to invade a military base and open fire with automatic weapons until they were shot dead themselves.
Rest of story here:
http://yalibnan.com/site/archives/2009/08/australia_foils.php
Briefly, police became aware of unusual activity among certain Somalis resident in South Australia, and conducted extensive surveillance-including wiretapping, and electronic monitoring of the al Shabaab group for a period of seven months.
When it became clear the Islamists were poised to mount a shooting attack on a military base, police moved in,and took the members into custody on a variety of charges.
(Anyone who thinks terrorism will "simply fade away if we are nice" has just been corrected - rather rudely, at that .)