The primary perpetrators of US terrorist attacks were mostly U.S.-born citizens or permanent legal residents originally from countries not included in the ban.
원문출처 : http://www.cnn.com/2017/01/29/us/refugee-terrorism-trnd/index.html
원문출처 : http://www.cnn.com/2017/01/29/us/refugee-terrorism-trnd/index.html