There's been a lot of talk in the media recently about private jets. Not that I'll ever be able to take one, but just out of curiosity (and probably other people may also be interested in the answer,) if you take a private jet, do you still have to go through the regular TSA shoes-off no-liquids etc. security? I suppose that if you fly from a private air strip you don't, but if you fly from a regular airport, do you have to go through security with everyone else before you can get to your plane? Or is not having to deal with the TSA another perk for those rich enough to fly private jets?

Thanks to any knowledgeable persons who could cast light on this idle question.