CNN Erin Burnett OutFront December 17, 2014 00:08:00
Perimeters and determine the hostage takers and the hostages, the whole setting would be similar to any of our agencies around the world dealing with this. >> spider, one expert told me he thought something like this would happen within the united states within months. is there any way to stop it? >> well there is no reason to believe that it wouldn't happen. we have an open society. we've achieved a level of freedom that we don't want to eliminate. we don't want to further reduce. we certainly lived through that post-9/11 and we created new procedures that have been in place and a new normal....