By the end of this week, potentially thousands of Tesla owners will be testing out the automaker’s newest version of its “Full Self-Driving” beta software, version 10.0.1, on public roads, even as regulators and federal officials investigate the safety of the system after a few high-profile crashes.

The U.S. Treasury will not introduce a redesigned $20 bill picturing escaped slave and abolitionist Harriet Tubman next year as planned By Makini Brice.

What does it mean to have an emotion? It seems obvious that having one means feeling it. If you’re happy but don’t know it, in what sense could you actually be happy? By Jim Davies

Strong increases in cultivation were recorded in almost all major poppy producing provinces, with restive Helmand in the south seeing the biggest rise of 79 percent. By Usman Sharifi.

Tweet first, ask questions later. By Aaron Rupar.

The Special Inspector General for Afghanistan Reconstruction urges a tough review and changes in reconstruction aid priorities, along with a possible rethinking of U.S. troop reductions. By Pamela Constable.

Wealthier patients can afford to get on more organ transplant lists, giving them an advantage, a new study says. By Laura Beil.

The U.S. military has run the numbers on a sustained fight with Moscow, and they do not look good for the American side. By Nancy A. Youssef.