President Joe Biden appeared at a virtual joint news conference with Boris Johnson and Scott Morrison, the prime ministers of Britain and Australia, to announce a new security arrangement for the Asia Pacific region. Under the terms of the historic deal, the US will share nuclear submarine technology with Australia. Biden and his counterparts never mentioned China in their statements, but they didn’t have to. Beijing says the pact, “seriously undermines regional peace and stability and intensifies the arms race.” The World’s Matthew Bell reports.