article_snippet: (CNN)One of the most pernicious phrases in the debate over how to counter extremist use of social media is "whack-a-mole.
article_snippet: While our study was only a preliminary look at this issue, our study examined a body of data that dwarfs any existing study on the subject.
article_snippet: One of the most notable we observed in we was the question of how people in the network behave under pressure.
article_snippet: It's time to take this debate to the next level, and let the whack-a-mole mole stay whacked.