On Monday's AM: Churches and houses in central Italy destroyed by the country's most powerful earthquake in 36 years; a salmon farming industry leader warns that the intensively farmed Macquarie Harbour in western Tasmania is facing an environmental catastrophe; and doubts are being raised about theme park Dreamworld's ability to restore public confidence as it appoints a disaster recovery expert in the wake of last week's fatal accident. This is an early edition of AM. The complete 30 minute edition will be available for download at 9am.