The Trump administration is reinterpreting a key word in the Endangered Species Act that could have big consequences for species at risk.

Protests against the Trump administration are held for another weekend at scores of cities and towns across the U.S.

The U.S. and Iran have agreed to meet again for nuclear talks. President Trump has not ruled out military strikes if talks fail.

Saturday marks the 30th anniversary of the Oklahoma city bombing. The city held a commemorative service for the 168 victims.

Courts and the Trump administration have clashed repeatedly in two high profile immigration cases this week, with another Supreme Court showdown looming.

World Health Organization member states agreed to the treaty after three years of talks. NPR speaks with Precious Matsoso, who served as co-chair of the group tasked with creating the treaty.