Washington (CNN) — A video from 2011 has resurfaced showing American-born al Qaeda spokesman Adam Gadahn discussing how easy it is to buy guns in the United States and urging fellow radicals to do so.

In the video, the California-raised Gadahn said militants should arm themselves for attacks on Western governments.

“America is absolutely awash with easily obtainable firearms,” said Gadahn, “You can go down to a gun show at the local convention center and come away with a fully automatic assault rifle, without a background check, and most likely without having to show an identification card. So what are you waiting for?”

Al Qaeda supports lone wolf terrorists abroad and has emphasized shootings, which require less specialized training than bombings or other attacks and may have a better chance of succeeding.

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