You are exactly right, our fourth-amendment rights have been completely thrown out, violated almost daily by (unconstitutional) federal police agencies (ATF, DEA, FBI in some cases, secret service.) I do take issue on one minor point however: taking a drug test for a job has nothing to do with the fourth amendment. Nobody is suggesting that a company can force a drug test on you. Only the government can. If you don't want to take the test, you do't have to. Just apply for a different job, with perhaps a different employer, one that requires no such test. An employer has every right to require a drug test. Nobody is forced to work there.