Uber abruptly halted testing of its autonomous vehicles across North America on Monday, after a 49-year old woman was struck and killed by one of its cars while crossing a Tempe, Ariz. street Sunday night. The moratorium on testing includes San Francisco, Phoenix, Pittsburgh and Toronto. Sunday’s crash was believed to be the first fatality in any testing program involving autonomous vehicles.

What was finally real was Edgar Welch, driving from North Carolina to Washington to rescue sexually abused children he believed were hidden in mysterious tunnels beneath a neighborhood pizza joint. What was real was Welch — a father, former firefighter and sometime movie actor who was drawn to dark mysteries he found on the Internet — terrifying customers and workers with his ­assault-style rifle

A horse named Nyquist is favored to win Saturday's Kentucky Derby at Churchill Downs, but with odds of 3 to 1, no one will be surprised if he doesn't. Surprises are expected to occasionally happen in horse races, and that's also true of the other big horse race going on right now — the presidential one. On the eve of the first GOP primary in Iowa in February, Marco Rubio's odds of winning the Repu

An American void He showed them his gun. He spoke of doing ‘something crazy.’ Why do the friends Dylann Roof stayed with before the Charleston church shooting shrug about their inaction? RED BANK, S.C. The trailer where Dylann Roof found refuge is faded yellow with a thousand tiny dents. It is on the western edge of Columbia, S.C., along an unpaved road strewn with damp garbage, and it is where Ro

Amid continued debate over whether or not Sochi is prepared to host the 2014 Olympics (here are 15 alarming signs that Russia might not be ready) reporters from around the world are starting to check into local hotels — to their apparent grief. Some journalists arriving in Sochi are describing appalling conditions in the housing there, where only six of nine media hotels are ready for guests. Hote

When we first collected much of this data, it was after the Aurora, Colo. shootings, and the air was thick with calls to avoid "politicizing" the tragedy. That is code, essentially, for "don't talk about reforming our gun control laws." Let's be clear: That is a form of politicization. When political actors construct a political argument that threatens political consequences if other political act