Remaining Vigilant

By Matthew Olsen

Former Cipher Brief Expert Matthew Olsen is the Assistant Attorney General for National Security. He is also the former Chief Trust and Security Officer at Uber. Olsen spent over twenty years working for the U.S. government and served as Director of the National Counterterrorism Center (NCTC), as the General Counsel for the National Security Agency, and as former Special Counsel to the Director of the Federal Bureau of Investigation.

The Cipher Brief: First Paris, then San Bernardino, now Brussels. How widespread are ISIS networks in Europe and North America and can we expect these kinds of attacks on a regular basis?  What is the threat to the U.S.?

Matt Olsen: The threat in Europe from ISIS is greater than the threat in the United States and that is for a couple reasons.

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