A decades-old program created by President George W. Bush to combat AIDS around the world is at risk of being sucked into a partisan dispute over abortion, with some Republicans threatening to block its renewal.
Heavy rains have caused catastrophic flooding and soaring temperatures are heating up oceans and cities. But emergency response often seems more popular than prevention on many issues.
The decision to fund medications to treat H.I.V.-AIDS patients in sub-Saharan Africa and the Caribbean flew in the face of expert advice. But the U.S. did it anyway.