A string of attacks that the Islamic State called the “Raid of Revenge for the Two Sheikhs” in recent months shows that the group has strengthened – at least in Syria, though it languishes in Iraq, its former stronghold. U.S. policy failures in Syria left the country open for the Islamic State to regroup and carry out operations. In this episode, author Abdullah al-Ghadawi shares why the United States needs to rethink its strategy and recognize the threat that ISIS poses.