A community is on edge following an arson attack upon one of Australia's oldest synagogues. (James Ross/AAP PHOTOS) A community is on edge following an arson attack upon one of Australia's oldest synagogues. (James Ross/AAP PHOTOS) Credit: AAP Jewish communities are on edge after separate alleged anti-Semitic attacks on a synagogue and two other locations in one night, as police step up patrols and counter-terrorism officers stand ready. Twenty congregants were forced to flee a synagogue in East Melbourne on Friday night after a bearded man in his 30s allegedly doused the building's front door with flammable liquid before setting...