US President Joe Biden was to pay his last respects in London to Queen Elizabeth II on Sunday, as ordinary mourners waiting in marathon lines were warned that time was running out to view her coffin lying in state. After witnessing the sombre scene in parliament's Westminster Hall, Biden, Japan's Emperor Naruhito and other world leaders, including Malta's President George Vella, were due to attend a reception with King Charles III. Biden, who flew in late Saturday, has said that Charles's mother "defined an era" after she reigned for a record-breaking 70 years leading up to her death on September 8, aged 96. Australia's anti-monarchy Prime Minister Anthony Albanese, who viewed the lying-in-state and met Charles on Saturday, told Sky News Australia that the queen was "a constant reassuring presence". There was also a private audience at Buckingham Palace for Prime Minister Jacinda Ardern of New Zealand, which like Australia and 12 other Commonwealth realms now counts Charles as its sovereign. "You could see that it meant a huge amount (to Charles) to have seen the sheer scale and outpouring of people's love and affection for her late Majesty," she told BBC television Sunday. But...