Irresponsible talk of former officials of the previous administrations, that engages in speculation about China's motives and it's interests in Iran.
Russian interests are to be respected as a part of western civilization as a part of evolving modern Northern Europe since 1400, and in the 20th century since the development of nuclear weapons a technological world power that sees its first responsibility to prevent nuclear proliferation and maintain the health of the planet. China's interests as a world power are also first and foremost about its responsibilities for nuclear non proliferation, responsibilities it shares with the US and Russia. China and India also see western civilization as a role model with the Renaissance, the Enlightenment, and the scientific and industrial revolutions, and wish to embrace them for their entry into the Modern World.