WATCH: Homeland Security Secretary Mullin says FAA flight stoppage 'isn't another 9/11'

Homeland Security Secretary Markwayne Mullin said there are no indications of an attack against the nation, after the Federal Aviation Administration grounded all flights nationwide Friday afternoon due to communications problems.

Homeland Security Secretary Markwayne Mullin said there are no indications of an attack against the nation, after the Federal Aviation Administration grounded all flights nationwide Friday afternoon due to communications problems.