You forgot the part that makes it a violation of your privacy. "and persons"
en.wikipedia.org...
* Fourth Amendment – Protection from unreasonable search and seizure.
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
The reason it is allowed is not because it is not a violation of your privacy. It is. Clearly, it is. Randomly sampling the pee of people who are not suspected on reasonable grounds of using drugs is a violation of the 4th Amendment. The reason companies are allowed to do this is because they are not the government. The line of reasoning goes, "you dont have to work there." Completely over looking that increasingly, you DO have to work for a company that tests, as very few do not at this point.
The fact that it is a violation of the 4th Amendment is the reason our leaders are not tested.



