Afghanistan terror: 9/11-era law enforcement officials, experts weigh in on protecting the American people

Terrorism experts and former top-ranking law enforcement officials say the United States must not only be prepared to protect against threats caused by the events outside of the country, such as in the Middle East, but must also watch for any threats created by individuals coming in. 

Former Boston Police Commissioner Ed Davis told Fox News "the great majority of people" seeking refuge from Afghanistan in the U.S. "are looking for a new life – and many of them have helped the United States." "You don't want to say anything negative about the people who … have actually risked their lives to fight terrorism in a very real way," Davis explained. "But the truth is that when large numbers of people are brought into the country like this, the vetting process has to be very intense. And I know from doing investigations around the world that trying to do a background investigation on someone who has come from a country like Afghanistan is virtually, is very difficult to do."  Davis led the Boston Police Department’s response to the 2013 Boston Marathon bombing and served as commissioner from 2006 to 2013.