04:59 Drone expert highlights national security risks amid changing technology in Congressional testimony July 23
05:40 US defense is 'lightyears behind' other countries' drone technology, warns national security analyst June 3
05:41 Brett Velicovich warns the US is getting 'left behind' when it comes to drone technology May 10
09:49 All Democrats and some Republicans have been looking at border security issues the ‘wrong way,’ says expert February 16
02:08 US Air Force General says there were over 350 drone detections over 100 bases last year February 13
05:58 Brett Velicovich warns US doesn't have clear policy on drone incursions: 'National security threat' December 26
05:42 There's been 'a lot of talk' and 'posturing' but 'no action' on mysterious drones, NJ mayor says December 21
01:32 Rep. Chrissy Houlahan says evidence presented to her shows the drones do not pose any threat December 17
