This Saturday past, just after nightfall in Yellagonga Regional Park, about 30 minutes drive from Boorloo (Perth's city centre), air raid sirens pierced the air as high-beam spotlights menaced a patch of bushland lining the shore of Lake Joondalup.
Who amongst the 10,000-odd punters watching on, from picnic blankets scattered on the grassy slope, could help feeling a twinge of primal fear; the sense — however fleeting — of being imperilled?
