twenty-first century

In the name of war, this century has seen an astonishing erosion of constraints on that very power, as Yale law professor Harold Hongju Koh details in his illuminating new book, "The National Security Constitution in the Twenty-First Century."

On today’s episode of A Word, he joins host Jason Johnson for a conversation about the new edition of his book, Merlin’s Tour of the Universe, Revised and Updated for the Twenty-First Century: A Traveler’s Guide to Blue Moons and Black Holes, Mars, Stars, and Everything Far.

Trump’s mentor Roy Cohn would be very proud of Donald Trump’s twenty-first century red baiting.

For twenty-first century readers, to be drawn and quartered is a particularly gruesome manner of death.

"We find that rapid ocean warming, at approximately triple the historical rate, is likely committed over the twenty-first century, with widespread increases in ice-shelf melting, including in regions crucial for ice-sheet stability," the authors write.