Searching a Cleveland resident traveling to Akron is something that does not happen because such a search would be unreasonable, but this does not apply to airlines because you are bad at analogies. I like how I never said "for general public protection," yet you seem to be quoting me on it. Searching bags is for the protection of those specifically traveling on airlines, which have been the targets of hijackings and attacks long before the 9/11 attacks.

I also like how you are saying that I justified searching bags because flying on airlines is "completely voluntary." I never said that. I justified searches because they are reasonable in this context. I said that flying is voluntary and if you feel your rights have been violated then sue for damages.

"Obviously the government (county in this case) is bound by the constitution, but the company responsible for maintaining the roads could do the searches, couldn't they?"
It was a pretty bad analogy to start off with, I'm not quite sure why you took it this far. But here, I will play along with you. If we are discussing transportation over the roadway between Cleveland and Akron, then your car is analogous to a small single rotor airplane, while a large, privately owned bus is analogous to a large passenger airplane. The bus company has been the target of numerous hijackings and bombings, and recently a hijacked bus was used to kill several hundred people, so the security on the bus between Cleveland and Akron is now controlled by the government. The government wants to search you for weapons and search your bags for bombs, to ensure the safety of the other passengers on the bus. You don't have to ride the bus, but you decide to anyway (almost like its 'voluntary'), and now you are here, complaining that your rights have been violated by the bus security. I've always said, if you are going to use analogies involving airplanes and cities in Ohio, go all the fucking way.