NEW YORK—With so many intractable problems in global politics, it is all the more frustrating that the international community often neglects pressing ones that can, in fact, be solved. Vaccination, which has stalled worldwide after decades of remarkable progress, is one such issue. As leaders convene in Geneva for the World Health Assembly, they face a stark choice: recommit to childhood immunization, the world’s most cost-effective public-health intervention, or condemn millions of young people to a life of increased vulnerability.

Kent Nishimura/AFP via Getty Images Politics 7 Trump’s Tragedy of Errors Joseph E. Stiglitz weighs the economic implications of America’s reckless war of choice against Iran.

Trump’s Tragedy of Errors

Atta Kenare/AFP via Getty Images Longer Reads 1 The Age of Global Un-Order Mark Leonard foresees a geopolitical landscape shaped not by stable alliances but by shifting interests.

The Age of Global Un-Order

Moor Studio/Getty Images Innovation 0 Living Without an AI Kill Switch Ngaire Woods identifies the steps that can be taken now to prepare for attacks enabled by frontier models like Mythos.

Living Without an AI Kill Switch

Immunization has averted more than 150 million deaths over the past half-century, making it one of the most reliable ways to reduce child mortality. According to the Johns Hopkins........

© Project Syndicate