IE 11 is not supported. For an optimal experience visit our site on another browser.
UP NEXT
Who is Third Party Candidate Jill Stein?
00:37What’s the Youngest Age to Compete in the Olympics?
00:35Is China Militarizing in the South China Sea?
00:37How Do You Become a Member of the Academy?
00:37Wall Street Lingo: What's a Corporate Inversion?
00:35Behind the Brexit: Why the U.K. Might Leave the E.U.
00:36Why Uber Is Better at Geolocation Than 911 Dispatch Centers
00:35How Does the IPhone's Fingerprint Scanner Work?
00:35Baby Boomers Are Reimagining Their Next Steps
00:49Eight Weird Things That Have Shown Up on Weather Radar
00:35Here’s Why We Have Statutes of Limitations
00:36What Time Do Tornadoes Tend to Strike?
00:43How Does the Abortion Pill Work?
00:36Gravitational Waves Discovered - But What Exactly Are They?
00:41Where Can You Find Most Volcanoes?
00:43What Is a Silent Heart Attack?
00:42Those Blood Pressure Numbers Explained
00:42Should Pregnant Women Exercise?
00:42Is Snoring Dangerous?
00:42
NBCNews.com
Internet Invaders: What Is a Troll?
00:43Trolls are more than just characters in fairy tales. They've been stirring up trouble in the comments section of many websites.Aug. 21, 2014
UP NEXT
Who is Third Party Candidate Jill Stein?
00:37What’s the Youngest Age to Compete in the Olympics?
00:35Is China Militarizing in the South China Sea?
00:37How Do You Become a Member of the Academy?
00:37Wall Street Lingo: What's a Corporate Inversion?
00:35

Nightly News Netcast

Nightly News

Nightly News

Nightly News
Play All