Scott and Gareth Porter continue their ongoing conversation about President Trump's foreign policy so far. Porter focuses first on Iran, which has become the ultimate excuse for just about every foreign policy decision over the last decade. In reality, of course, Iran is basically irrelevant to the security of the United States, and isn't, says Porter, even much of a threat to America's allies like Israel and Saudi Arabia. But in the perception of the neocon establishment, Iran is the greatest enemy since Nazi Germany, and must be opposed at every turn no matter how destructive and quixotic...