American traitor Gadahn, now Al Qaeda's American spokesman, praised the murderer and traitor Hassan for his shooting at Ft. Hood.

[What happened to hanging traitors?]

"Nidal Hasan is a pioneer, a trailblazer and a role-model who has opened a door, lit a path and shown the way forward for every Muslim who finds himself among the unbelievers," Gadahn said.

"Brother Nidal is the ideal role-model for every repentant Muslim," he said.

"You shouldn't make the mistake of thinking that military bases are the only high-value targets in America and the West. There are countless other strategic places, institutions and installations which, by striking, the Muslim can do major damage."

Gadahn grew up on a goat farm in Riverside County, California, and converted to Islam at a mosque in nearby Orange County. He has been wanted by the FBI since 2004 and two years later was charged with treason. There is a $1 million reward for information leading to his arrest or conviction.

He has in the past posted videos and messages calling for the destruction of the West and for strikes against targets in the United States. His location is unknown, but he is believed to be somewhere along the border between Afghanistan and Pakistan.

In the latest video, Gadahn said those planning attacks did not need to use only firearms like Hasan, but could use other weapons. "As the blessed operations of September 11th showed, a little imagination and planning and a limited budget can turn almost anything into a deadly, effective and convenient weapon."

Gadahn said fighters should target mass transportation systems in the West and also wreak havoc "by killing or capturing people in government, industry and the media."

He recommended finding ways to shake "consumer confidence and stifle spending" and noted that even unsuccessful attacks, such as the failed attempt to bomb a U.S. airliner on Christmas day, can bring major cities to a halt.

– AP Associated Press