Aristedes Mahairas (FBI photo)

By Allan Lengel
ticklethewire.com

There’s an infinite number of scary scenarios involving terrorists.

Here’s one: The FBI is warning that terrorists are working to acquire the cyber skills to carry out catastrophic attacks that could involve taking down America’s 911 emergency response system, Business Insider reports.

Aristedes Mahairas, a special agent in charge of the New York FBI’s Special Operations/Cyber Division, tells Business Insider terror groups like ISIS and Al-Qaeda are plotting attacks that could wipe out online networks to maximize casualties.

“The concern is that the cyber terrorists will one day be able to simultaneously execute an attack in the virtual world and in the physical world,” Mahairas tells the publication.