Failures to stop a deadly threat to cars from 18-wheelers
ProPublica and Frontline investigate decades of government failure to prevent deadly crashes between cars and commercial trucks.
The Nile is the world’s longest river? The Amazon would like a word. The Washington Post has more on an intractable geographic debate.
NPR reports on research into whether a playlist of fish sounds can help save the world’s coral reefs.
The skinny
The skinny isn't ready yet — notes appear once the transcript is processed.