know it in a hurry. >> sean: all right. you don't need the fence? >> i think there are places that strategic fencing. i think the idea of saying, listen, i am going to build a double fence. we are going to put alligators between it and lava in there as well. wong tries to outdo the other one -- that's 2,000 miles. the idea of building a 2,000-mile fence takes huge amounts of money and takes a very long period of time. but strategic fencing in the high-traveled areas where they are absolutely use it there. then, you aug.ment that with the most powerful piece of the strategy and that's the boots on the ground, driven by the aviation assets with riel realtime information. those three together make the border secure. >> sean: let's go to your economic plan. you gave two big speeches. one was on energy and the other was the flat-tax plan. explain both of them.