Pretty much the entire magazine is dedicated to the UPS package bombs. Al Qaeda claims that a UPS plane that crashed in September was taken down by a similar bomb.
Some choice bits:
Allah says: {O you who have believed, do not take the Jews and the Christians as allies. They are [in fact] allies of one another. And whoever is an ally to them among you – then indeed, he is [one] of them.
Here's the justification that is already accepted as reasonable by the Thaddeus Russells of the world:
The operation of the explosive packages which was performed by the mujahidin of the Arabian Peninsula against the companies of air freight belonging to the disbelieving nations is our right. It is our right because we are defending the Muslim lands. This operation has struck fear in the hearts of the Americans and their allies. This operation is a response to the Crusaders aggression against the Muslims of Afghanistan, Iraq, Somalia, the Maghreb, Chechnya and the Arabian Peninsula. It is a response to the continuous support to the usurping Jews who are invading Jerusalem and are blockading Gaza.
And this:
Today we are facing a coalition of Crusaders and Zionists and we in al Qaeda of the Arabian Peninsula will never forget Palestine. How can we forget it when our motto is: "Here we start and in al-Aqsa we meet"? So we listed the address of the "Congregation Or Chadash", a Gay and Lesbian synagogue on our one of our packages. The second package was sent to "Congregation B'nai Zion". Both synagogues are in Chicago, Obama's city.
(h/t Zach for the PDF, sorry, no URL)