Khalid al - Qaeda calls for the kidnapping of Westerners . Al Qaeda 's leader made the call in a video posted on jihadist websites . Al - Qaeda cites the kidnapping of Warren Harding as an example .
Ayman al-Zawahiri calls for the kidnapping of Westerners . Al Qaeda 's leader made the call in a video posted on jihadist websites . Al-Zawahiri cites the kidnapping of Warren Weinstein as an example .