>> we have schreiber, so get night on cnn closed captioning. he's brought to you by christian faith publishing, right? for a higher purpose published with us christian faith publishing is an author friendly publisher who understands it. your labor is more than just a book color scan for your free riders guide, 8045 51827 tonight, cnn gaining exclusive access to the security preparations by multiple law enforcement agencies ahead of the democratic national convention alone, gunman, violent protests. >> those are just some of the many scenarios. there. readying four john miller is outfront the democratic national convention is always a security challenge but given the backdrop of a world engaged in two wars, terrorist propaganda calling for a tax on us soil. >> that's a significant concern and protests sweeping being cities and campuses.