Just more proof they are coming again.
Check it out:

Al Qaeda in the Arabian Peninsula’s media branch is out with a new English language magazine, Palestine-Betrayal of the Guilty Conscience Al-Malahem. The new publication, a spin-off of Inspire, is calling on fellow Muslims to wage acts of terror in the United States and Britain.

Fox News reports:

A new English-language Al Qaeda magazine features a how-to article on making car bombs and suggests terror targets in the United States, including casinos in Las Vegas, oil tankers and military colleges, and implies that an attack is imminent. […]

“The timeline concludes with the date 201?’ and blank spaces and question marks for the photo and information of the next attack — implying that it is coming soon,” said MEMRI Executive Director Steve Stalinsky.