Explore a critical discussion on homeland security challenges posed by the rise of ISIL in this 48-minute conference talk featuring Jeh Johnson, Secretary of Homeland Security. Gain insights into DHS's role in combating ISIL, lessons learned from Al Qaeda, and strategies for countering violent extremism. Delve into topics such as homegrown and domestic extremism, immigration concerns, and border security. Listen as Johnson, moderated by Ryan Lizza of The New Yorker, addresses audience questions and discusses the complexities of Islamic extremism, the potential for civil war within Islam, and efforts to prevent ISIL's expansion. Understand the multifaceted approach to homeland security in an era of evolving terrorist threats.