Two of Donald Trump’s main pledges during the presidential race were building a wall along the border with Mexico, and making the U.S. energy-independent. Now that the election is over, these issues are coming to the fore. First, the president-elect said that the wall, which he mentioned on the campaign trail and in numerous debates, is still very much on the table, though what type of “wall” that may be is an unknow. Second, he said he planned to start deporting illegal aliens—those with criminal records—which could amount to as many as three million individuals. Despite “The Wall”, the deportation...