 Secret Service. Security tight in Milwaukee as the convention kicks off. Secret Service agents and local police from the east and west coast are everywhere. Coast Guard choppers seen flying across the city over the weekend. Nearly impossible to drive anywhere. Streets being blocked with concrete at a moment's notice. Trying to walk around said to be cumbersome with massive fences across many sidewalks. The Trump assassination attempt over the weekend added to the security process in Milwaukee. It was always expected to be very tight.