After six months of contentious debate over U.S. National Security Agency surveillance programs, prompted by leaks from former government contractor Edward Snowden, the third week in December may have marked a major turning point.
YEAR END - News, Features, and Slideshows
For decades, scientists have fantasized about creating robots with brain-like intelligence. This year, researchers tempted by that dream made great progress on achieving what has been called the holy grail of computing.
With 2013 coming to an end, we took our annual look back at quotes from news stories over the last 12 months. Here are a handful that stuck with us through the year: