Officials warn about increased nuclear threats from Iran and China's expanding arsenal

U.S. officials are warning about increased nuclear threats from both Iran and China, with particular concern over China's expanding nuclear arsenal. Iran is reportedly weeks away from enriching uranium to weapons-grade levels, prompting U.S. support for targeting its stockpile. The U.S. is ramping up its nuclear weapons production to Cold War levels, asserting its dominance in the global nuclear landscape.