This is heartwarming:
U.S. Constitution, Amendment IV
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 amendment was included as a response to a tyrannical government. You can be sure that government believed its actions were "for the good of the people" or "for public safety" too.
1. DUI checkpoints are unconstitutional, regardless of what judges believe.
2. To do away with DUI checkpoints and still remove drunks from the roads, give first time DUI offenders (when reasonable suspicion or probable cause exists) a revocation of license for one year and 90 days in prison. Second offense is 10 year revocation and two years in prison. Third offense -- choose something appropriate.
3. We get everything we want, and don't have to ignore the constitution -- something I believe every resident of the U.S. is bound to obey, even judges, legislators and police officers.