MPs say the apparent attack is their 'worst nightmare' come truepublished at 06:04 BST
Tiffanie Turnbull
BBC News, Sydney
As increasingly frequent acts of violence against politicians have shocked the globe in recent years, Australia has watched on with a contradictory feeling: that attacks like that could not happen here, and that it was only a matter of time until they did.
But MPs and public figures – backed by experts – have been warning of a volcano of threats against them as social cohesion cracks, polarisation intensifies and the tone of debate grows hotter.
Coalition Senator James Paterson told News24 on Tuesday: "I'd like to say that I was surprised… but I'm not at all surprised."
MPs from across the spectrum have been describing a political climate in which they've found themselves wearing disguises in public, locking their office doors, and scanning every crowd for potential threats.
Women in politics are particularly scared, said Victorian state MP Georgie Purcell, who shares part of her electorate with Haines: "For many of us, the news... is our worst nightmare."
There have been frustrated rumblings in Canberra from some MPs who say security arrangements have not changed to match the threat and – if a political motivation for this incident is confirmed – one of the greatest tenets of the nation's political culture could now be at risk.


















