 The Republican National Convention kicks off tonight in Milwaukee with even more emphasis on security. ABC's Jay O'Brien is inside the forum in Milwaukee with more. The Secret Service would tell you that security here is already robust. Security was already the highest concern. There are two different security perimeters here. One is what they call the hard perimeter. That's where the Secret Service checks you as you come in. Every bag is swept, etc. And then there is the soft perimeter. That's controlled by local law enforcement. Vehicles are swept there as well.