Heads bowed and weeping, survivors and families of last year’s bomb attacks on Indonesia’s Bali Island paid tribute to the 202 people killed, as fresh warnings were issued that Muslim radicals could strike again. Sunday was a day of remembrance in Australia too, where most victims were from. Relatives clutched pictures of loved ones as they joined 2,000 people at a memorial service on a limestone escarpment overlooking Bali’s Kuta Beach, where Muslim militants blew up two nightclubs on this day a year ago. Up to 800 at the Christian service were survivors and relatives, the majority from Australia, which lost 88 citizens in the worst act of terror since the September 11, 2001, strikes. In all, 22 countries lost people. ‘‘If we didn’t come back they would have won. It goes to show they can’t beat the Australian spirit. We’ll keep on coming and sticking it up their face,’’ said Jason Madden, 31, who lost seven friends from Perth’s Kingsley Cats football team. Hundreds also made the pilgrimage to the site, dotted with wreaths and bouquets.(Reuters)