I tend to agree with this. When we all have to share the roadways and highways, it is in the public interest to make that as safe as can reasonably be accomplished. So I don't have any problem with requring drivers licenses, speed limits or traffic controls or laws re driving impaired or laws requiring attention to one's driving such as restrictions on cell phone use while driving. Such laws keep us from unreasonably endangering others.
And those laws have to be enforced in order to be effective and check points are one way of enforcement.
In other words, since checkpoints serve a laudible and justifiable purpose, we should allow them in "the public interest." Of course checkpoints serve such a purpose. The question is, do they serve
enough of a purpose to justify carving an exception into the 4th Amendment in order to maintain them? And make no mistake about it - checkpoints are
clearly 4th Amendment violations because they involve the stopping and detaining of citizens by the police without ANY probable cause or reasonable suspicion to believe that the citizen is engaged in any form of criminal activity prior to the stop.
Whether checkpoints should be allowed depends pretty much on one's own, personal philosophy. "Law and order" types (generally, conservatives) should probably be in favor of checkpoints on the basis of the (flawed) reasoning utilized by them as set forth in the last paragraph of your post here, which I shall discuss in a moment. Liberals should resist checkpoints as 4th Amendment violations.
That the courts are generally upholding them these days, should tell us a great deal about the political makeup of our current judiciary. But that may be a topic for another thread.
I know its an old saw and all, but when they are used appropriately and professionally by law enforcement, those who aren't breaking any laws have no reason to fear them whatsoever. They actually secure rights, so what's the problem?
It not only is an "old saw," it is also the height of short sightedness and fuzzy thinking. "Those who are doing nothing wrong have nothing to fear from the police."
I would bet you don't have drugs stashed in your house. So you should have no problem with the police searching your house, right? Do you know how police search a house? Let's just say that, when they are done, the homeowner generally has a major cleanup problem to deal with at best and, quite often, major house repair bills for fixing things that have been smashed in order to gain access to closed off areas.
But there is more to it than this obvious example. Using this line of thinking, innocent people should have no objection to a police search. Suppose an innocent person allows the police to search his house or car when they would otherwise be prevented from doing so by the 4th Amendment. During the search, the police find contraband the innocent person did not know was there. The visiting relative left some cocaine in the bathroom or their son has a stash of grass hidding somewhere on a high shelf in the kitchen. Possibly there is a gun in the house which, unbeknownst to the innocent homeowner, is stolen. The possibilities are endless.
The contraband is discovered. The homeowner protests innocence based on lack of knowledge. Do you think the police are going to say, "Oh, well then - since you say you didn't know about it, then foget it. Have a nice day," and leave? Guess again, Mojambo.
And now, suddenly, you as the innocent homeowner, are in a place you have never been before, wearing a type of bracelet you have never had on before. And now, suddenly, you are beginning to have second thoughts about your previous philosophy as it relates to innocent people allow the police to search without probable cause.
That is but ONE example, and ONE reason why this "if I am innocent I have nothing to fear" business is not smart. There are many others.