By — PBS News Hour PBS News Hour Leave your feedback Share Copy URL https://www.pbs.org/newshour/show/former-national-security-advisor-al-qaida-head-killed-air-strike Email Facebook Twitter LinkedIn Pinterest Tumblr Share on Facebook Share on Twitter Transcript Audio With the killing of an al-Qaida head Nasir al-Wuhayshi in Yemen, is the group losing ground? Gwen Ifill talks with former National Security Advisor Juan Zarate on what the death of this leader means, as well as the progress of the fight against the terrorist group. Read the Full Transcript Notice: Transcripts are machine and human generated and lightly edited for accuracy. They may contain errors. Listen to this Segment Watch Watch the Full Episode PBS NewsHour from Jun 16, 2015 By — PBS News Hour PBS News Hour