The political scientist Francis Fukuyama looks back on his 1992 book, “The End of History and the Last Man,” and what i…

A.I.-driven cyber and biological attacks threaten not just American lives, but also the American government.

Vice President JD Vance received sobering assessments about the war that did not line up with what he, President Trump …

Air pollution from gas-fired power plants to run data centers is expected to add at least $20 billion in annual health …

Luis Cruz dashed into a busy street in Puebla, Mexico, to pull a girl out of the path of an approaching S.U.V. Footage …

Temperatures soared across the region on Tuesday. The muggy weather will get worse before it gets better.

Memories of life in the shadow of ground zero.