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"On this week&amp;#39;s &amp;quot;Tech Talk,&amp;quot; Ced Kurtz and Laura Schneiderman talk about a Facebook psychological experiment on its users. (Video by Melissa Tkach; 6/30/2014)"^^<http://www.w3.org/2001/XMLSchema#string>
<http://www.post-gazette.com/video/?v=3651949387001>