With 3,000 Rioters out there I'm sure you can find many pictures of Rioters of all genders wearing all sorts of swimwear," he said. "Another claim in the tweet was that there is a rule against raising possible dress code violations. In fact, we want and encourage Rioters to bring any concerns they may have about their workplace environment to our attention so that they can be addressed as quickly as possible. In this case, if this issue had been raised internally we would have reviewed the T-shirts in question and probably asked those Rioters to change them."

Artificial intelligence systems are going to crash some of our cars, and sometimes they're going to recommend longer sentences for black Americans than for whites. We know this because they've already gone wrong in these ways. But this doesn't mean that we should insist--as many, including the European Commission's General Data Protection Regulation, do--that artificial intelligence should be able to explain how it came up with its conclusions in every non-trivial case. David Weinberger (@dweinberger) is a senior researcher at the Harvard Berkman Klein Center for Internet & Society. Demanding explicability sounds fine, but achieving it may require making artificial intelligence artificially stupid. And given the promise of the type of AI called machine learning, a dumbing-down of this technology could mean failing to diagnose diseases, overlooking significant causes of climate change, or making our educational system excessively one-size-fits all.

Carol E. Reiley is the co-founder and president of Drive.ai. She previously founded Tinkerbelle Laboratories. During my Ph.D. studies, I developed a voice-activated human-robot interface for a surgical robotic system using Microsoft's speech recognition API. But, because the API had been built mainly by 20-30-year-old men, it did not recognize my voice. I had to lower my pitch in order for it to work.