joining us by skype is the dean of college of aviation services at utah valley university.e is working to help his state become a drone testing site. and an activist with the electronic freedom foundation, and a drone pilot and the president of shark, an animal protection group. welcome to all of you. pierre you are an army intelligence captain. you were a drone pilot. when most people think about drones those are the terms they think about for military and surveillance, but there are so many other uses. give us the 101 on the vast array of drones. >> sure. number one they come in all shapes and sizes. they could be as small as the size of your hand or as big as a 737 boeing. and also the duration of flight. they can fly for minutes or days on end. and thirdly is the sensors you put on them. you can have full-motion video, thermal imaging to detect heat. those are some of the ways we distinguish between drones. in military we use them number one for lethal purposes, but that's a small sliver of what the military uses drones for. in most cases it's to gather intelligence. so