Search and Seizure amendment

I think that school officials can search your stuff only if it is for breaking another law and they know that a certain person possess a stolen or illegal object, or commited a crime that they can 100% completely confirm that that person was one who commited the crime. I think that airport security is not a violation for your right because they are trying to protect everyone on the plane, so they are trying to save lives. In my opinion, I think it is fine if airport security can search me, because then I know that nobody else can get on a plane with anything that could potentially hurt myself and other passengers.