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Homeland Security Secretary Jeh Johnson joined Fox News Sunday to discuss the state of America’s defenses against terrorism 15 years after the worst terrorist attack on U.S. soil.

“We are stronger against… a terror attack from overseas,” Johnson told Chris Wallace.

The United States is “better than we were 15 years ago,” he said.

Discussing areas in the fight against terror that need to be further advanced, Johnson said that so-called “lone-wolf attacks”, like the incidents in Orlando, San Bernardino and Fort Hood, are still a major “challenge.”

He credited the installment of Peter Neffenger as head of the TSA as a reason that organization has become stronger after what he called “horrible test results” from a comprehensive inspection one year ago.

Find out what Johnson thinks about the ability to keep out terrorists and other criminals at the border and how his department has been dealing with cybersecurity threats from Russia and elsewhere in the clip above, and let us know what you think in the comments.

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