Al-Qaeda's Leader Urges Attacks, Boycotts on US
Ayman al-Zawahiri marks 9/11 with new threat
By Newsy, a Newser Video Partner
Posted Sep 13, 2013 4:37 PM CDT

(Newser) – Al-Qaeda’s leader has called for Muslims to launch small-scale attacks and even boycotts to damage the US economy. In an audio speech released a day after the 12th anniversary of the 9/11 attacks, Ayman al-Zawahiri urged sustained attacks that will hurt the US by forcing “massive expenditures” on defense and security.