NPR's Ailsa Chang speaks with Jake Johnston, a Haiti aid expert, about what USAID support has meant to that country and what a funding halt could mean.

Congress holds the power of the purse. But President Trump and Elon Musk are swiftly using executive actions to dismantle federal programs funded and approved by Congress.

NPR's Ailsa Chang talks with Emily Kwong and Regina Barber of Short Wave about the fluid dynamics of crowds, an early fossil of a modern bird and new data on how people's moods change through the day.

Venezuelan migrants sent to Guantanamo Bay are being held in a military prison that has housed al-Qaeda members.

The Proud Boys' trademark now legally belongs to the Metropolitan African Methodist Episcopal Church in Washington, D.C. NPR's Juana Summers talks with Rev. William Lamar IV about what comes next.

NPR's Juana Summers talks with former Philadelphia Eagles cornerback Sheldon Brown about what advice he has for the players heading to the Super Bowl on Sunday.

What do large crowds of people and water have in common? They both act like fluids. When crowds cheer, sway and clump ...

Gaza's police were hit hard by Israel in the war against Hamas, but the force is back providing law and order after months of looting and chaos.

President Trump's executive order to ban gender affirming care for young people had immediate effects. Clinics canceled appointments and patients are in limbo. Now, there's a lawsuit.

School vouchers are a top priority for Gov. Abbott in Texas, where the legislature is poised to pass a $1 billion plan. Democrats say the money would be better used to strengthen public schools.