Obama's concerned an AI could hack America's nukes

During his eight years in office, President Barack Obama has seen hackers grow into a threat no president has faced before. US intelligence and law enforcement agencies have responded to everything from a Chinese hack of Google in 2009 to Russian digital meddling in this election. He's learned, as a result, to think a few moves ahead. And that includes preparing for possibilities that others might consider science fiction--like the possibility of an artificial intelligence trained through machine learning and tasked with stealing US nuclear codes. In an era when hackers can steal the fingerprints of 5.6 million federal employees and or pull off a modern version of Watergate, he wonders whether sophisticated adversaries might use AI to infiltrate the government's most sensitive systems.