NBC News national security contributor and former FBI Assistant Director Frank Figliuzzi said Thursday on MSNBC's "Deadline" that Floyd Ray Roseberry, the 49-year-old North Carolina man who allegedly threatened to explode a bomb in his truck in Washington D.C. is an example of support of former president Donald Trump who grievances are being amplified and exploited online and in right-wing media causing him and others to be radicalized.