AUSA 2017: 4 amazing land vehicles at this year's show

Fox Firepower: Defense Specialist Allison Barrie shares her top picks of high-tech military vehicles on display at AUSA 2017 including a fuel-cell powered Chevy truck and a self-driving Polaris MRZR. Armored vehicles with laser weapons, silent motorcycles that can run on jet fuel, self-driving ATVs and futuristic Chevy trucks - there were a lot of eye-popping vehicles in the nation's capital this week. At the annual Association of the United States Army (AUSA) exhibition, US Army Soldiers and their families get the chance to explore innovation from around the world created for future combat. Many vehicles from giant tanks through to tiny rolling surveillance robots were on display this year. Here are four of the most popular draws throughout the week.