High-profile personalities usually receive security from law enforcement officers. That's the case when Warren Buffett and Bill Gates come to Omaha for the annual Berkshire-Hathaway conventions. They get several personal bodyguards that are selected members of the ERU team. The protection detail and escorts use event talkgroups that are digitally encrypted. I would wager that someone like Sarah Palin will have similar protection and private security would not be retained for her protection. Sorry, I can't help with the monitoring aspect either.