Every summer crowds flock to our city, but this time, in addition to a large number of high-profile visitors, Milwaukee is poised to get about as much attention as it can handle on July 15-18, when the eyes of almost every nation on the planet, and every state of the union will be upon us.   At a packed Memorial Hall yesterday, Rotarian Andy Bochman, senior grid strategist for Idaho National Laboratory’s National and Homeland Security directorate provided a brief snapshot of what Rotary members may expect to see as the RNC approaches.