AI decision making: Can machines learn ethical behavior?

Artificial intelligence has reached yet another milestone, of sorts, in its development: Elon Musk's OpenAI group has decided to hire "techie cops." These cops aren't futuristic vigilantes out to destroy a rogue AI program lest it kick-start the Terminator saga. Instead, they're looking for those who would abuse AI for illegal or unethical purposes. But even these kinds of policing efforts don't help assuage all the fears of people who are still wary of the very concept of artificial intelligence. It will take transparency and trust to change minds about what is, essentially, our inevitable future.