In Chief Justice Rehnquist's response stated, "In summary, the balance between the State's interests in preventing drunk driving, The extent to which this system can reasonably be said to promote that interest, and the degree of intrusion on individual motorists who are stopped briefly, weighs in favor of the state program. We therefore believe it is consistent with the Fourth Amendment." Law) I think the level of "intrusion" is downplayed in his response, because if you've ever gone through a DUI checkpoint (I haven't, I've only seen instructional videos and reaction videos) several police officers seem to have around your vehicle looking through the windows looking for just one thing out of place that gives them the two most important words ever said: "probable