Do you think Pres. Kennedy suspected something was up when he arrived in Dallas? I'm wondering, is it, or was it, for security reasons, always a closed sedan, unmarked, for the President while in the motorcade? Do you think he suspected something was up when he arrived in Dallas to find a convertible waiting for him? SS usually surrounds the car when driving slow, but not today. Do you think he knew? Especially after his speach regarding secret societies?