The head of the FBI has confirmed that an al-Qaeda cell that was struck last month in Syria is likely still working on a plan to attack the United States and its allies.

“Given our visibility we know they’re serious people, bent on destruction,” FBI Director James Comey said.  He added they’re looking to make the attack “very, very soon.”

The revelation came during an interview on CBS’ “60 Minutes.”

Comey said that at least a dozen Americans have been confirmed to be fighting alongside the ISIS terrorists and al-Qaeda related groups.  He said that anyone confirmed to be associated with the terrorists and then return to the United States will be tracked “very carefully.”

Comey said that Americans should be more confident in the government after 9/11.

“[The government is] better organized, better systems, better equipment, smarter deployment. We’re better in every way that you’d want us to be since 9/11.”