In the wake of Ayman al-Zawahiri's death, H.R. McMaster discusses the present-day strength of al-Qaeda and its relationship with the Taliban on CBS News.

Caption
Dr. Alex Karp. (Wall Street Journal photo)
In the wake of Ayman al-Zawahiri's death, H.R. McMaster discusses the present-day strength of al-Qaeda and its relationship with the Taliban on CBS News.