US President Joe Biden has visited the fire-ravaged Hawaiian island of Maui following days of criticism for his response to the crisis.Mr Biden told survivors of the devastating wildfires which broke out on August 8 that the nation “grieves with you” and pledged the Government would help to rebuild “for as long as it takes”.The president had faced criticism for not visiting Maui sooner, with some 800 people still missing and the death toll at 114.