Former FBI agent and CIA officer Tracy Walder tells "NewsNation Prime" the recent arrests of eight Tajik migrants with terrorist ties at the United States' border poses a genuine security threat akin to the September 2001 attacks. #Tajikistan #USBorder #Isis "NewsNation Prime" is America’s source for unbiased news offering a full range of perspectives from across the U.S. Weekends starting at 7p/6C. #Prime NewsNation is your source for fact-based, unbiased news for all America. More from NewsNation: newsnationnow.com Get our app: trib.al/TBXgYpp Find us on cable: trib.al/YDOpGyG How to watch on TV or streaming: trib.al/Vu0Ikij