[Dittohead68]

"are weapons and explosives checks at airport check-in also unconstitutional?"


Good try. Not gonna fly. When you fly on an airplane, you are entrusting your safety to someone else. You are paying someone else for your transportation, and they have thus assumed the liability for yours and everyone else's safety. You are NOT in your own private vehicle driving down the road.

In your own vehicle, you are CONSTITUTIONALLY protected to a RIGHT OF PRIVACY, where they cannot search your vehicle without prior consent or reasonable probable cause.

Try again.

[oceanview]

when I drive on the road, my safety also depends on "someone else" - the drunk crashing into me and killing me.

they aren't "searching your vehicle" - if you appear intoxicated, that gives them probable cause to test you.

[elkfersupper]

In your own vehicle, you are CONSTITUTIONALLY protected to a RIGHT OF PRIVACY

Correct. Considered an extension of your home in most places, particularly the western states.