ABC News’ Phil Lipof and Chief Global Affairs Correspondent Martha Raddatz discuss the U.S. drone strike that killed terrorist Ayman al-Zawahiri and why it could lead to consequences for the Taliban.

ABC News’ Phil Lipof and Chief Global Affairs Correspondent Martha Raddatz discuss the U.S. drone strike that killed terrorist Ayman al-Zawahiri and why it could lead to consequences for the Taliban.