Counterterrorism expert calls Trump Muslim ban 'wrong' strategy against ISIS

On June 17, 2016, the former director of the National Counterterrorism Center, Matt Olsen, spoke to Yahoo Global News Anchor Katie Couric about the investigation into the Orlando terrorist attack and Donald Trump's response, including reemphasizing his temporary ban on Muslim immigration. Olsen called the ban "not only wrong in terms of ... American values, but just wrong strategically from a national security standpoint."