Mall of America Heightens Security After al-Shabab Threat

Video claiming to be from al-Shabab posted online threatens mall.

Matt Olsen, former director of the National Counterterrorism Center and current ABC News consultant, said despite al-Shabab not having a known ability to carry out such an attack in the U.S., the threat must still be considered.

"Over the past few years, al-Shabab has been degraded overall, but it is still active in Somalia and parts of East Africa," said Olsen. "al-Shabab has no known operational capacity in the U.S., and we haven't seen the group develop the ability to carry out a complex attack here. But this type of threat can't be discounted, and the FBI and local police departments will have to take appropriate steps in response."

"In recent months, the FBI and DHS have worked closely with our state and local public safety counterparts and members of the private sector, to include mall owners and operators, to prevent and mitigate these types of threats," the statement continued.

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