 Purdue University cybersecurity expert Eugene Spafford says especially after the global IT outage, the Olympics could be a prime cyber target. There are a number of threat actors who could be interested in endangering the Olympics or using it as a platform for their messages. U.S. men's basketball team trying to win a fifth straight gold medal narrowly avoided an upset beating South Sudan 101-100 in a tune-up. I'm Brian Clark, ABC News.