Donald Trump, GOP presidential candidate
Donald Trump, GOP presidential candidate Nati Harnik AP
Donald Trump, GOP presidential candidate Nati Harnik AP

Notable numbers: Zettajoules, virtual charters and terrible presidents

January 22, 2016 04:00 PM

More Videos

  • A drought helped set the stage for the Syrian War

    Stephen A. Cheney, a retired U.S. Marine Corps brigadier general and CEO of the American Security Project, argues that climate change in the form of a historic drought contributed to the Syrian War and the rise of ISIS.