determine the luncheon site as quickly as possible, so that security could be established at the site and the motorcade route selected.

On November 4, Gerald A. Behn, agent in charge of the White House detail, asked Sorrels to examine three potential sites for the luncheon. One building, Market Hall, was unavailable for November 22. The second, the Women's Building at the State Fair Grounds, was a one-story building with few entrances and easy to make secure, but it lacked necessary food-handling facilities and had certain unattractive features, including a low ceiling with exposed conduits and beams. The third possibility, the Trade Mart, a handsome new building with all the necessary facilities, presented security problems. It had numerous entrances, several tiers of balconies surrounding the central court where the luncheon would be held, and several catwalks crossing the court at each level. On November 4, Sorrels told Behn he believed security difficulties at the Trade Mart could be overcome by special precautions. Lawson also evaluated the security hazards at the Trade Mart on November 13.28 Kenneth O'Donnell made the final decision to hold the luncheon at the Trade Mart; Behn so notified Lawson on November 14.

Once the Trade Mart had been selected, Sorrels and Lawson worked out detailed arrangements for security at the building. In addition to the preventive measures already mentioned, they provided for controlling access to the building, closing off and policing areas around it, securing the roof and insuring the presence of numerous police officers inside and around the building. Ultimately more than 200 law enforcement officers, mainly Dallas police but including 8 Secret Service agents, were deployed in and around the Trade Mart.30

The Motorcade Route

On November 8, when Lawson was briefed on the itinerary for the trip to Dallas, he was told that 45 minutes had been allotted for a motorcade procession from Love Field to the luncheon site.31 Lawson was not specifically instructed to select the parade route, but he understood that this was one of his functions.32 Even before the Trade Mart had been definitely selected, Lawson and Sorrels began to consider the best motorcade route from Love Field to the Trade Mart. On November 14, Lawson and Sorrels attended a meeting at Love Field and on their return to Dallas drove over the route which Sorrels believed best suited for the proposed motorcade.33 This route, eventually selected for the motorcade from the airport to the Trade Mart, measured 10 miles and could be driven easily within the allotted 45 minutes.34 From Love Field the route passed through a portion of suburban Dallas, through the downtown area along Main Street and then to the Trade Mart via Stemmons Freeway. For the President's return to Love Field following the luncheon, the agents selected the most direct route, which was approximately 4 miles.

After the selection of the Trade Mart as the luncheon site, Lawson and Sorrels met with Dallas Chief of Police Jesse E. Curry, Assistant