An 18-year-old Minnesota man has now pleaded guilty to trying to join the terror group ISIS. Abdullahi Yusef was charged last month with conspiracy to provide material support to a terrorist organization.
Security officials at Mall of America say they heard the chilling video from terrorist group al-Shabaab, and they take it seriously. With 150 people on staff just for security, they say this place is safe — they amped up security heavily after 9/11.
The attacks on Sept. 11, 2001, have changed the way fire departments operate, the way security is conducted at malls and the thinking of many Americans.