Do You Think Warrant-less Checkpoints on the Roads is Legal Constitutionally? Are They a Good Idea or Bad?

I assume your talking about police officers and seat belt checks and DUI stops. In the interest of public safety probably a good idea, but I think probably also unconstitutional as they have no reason to stop you or probable cause. Just because I happened by this particular road point at this particular time is not probable cause on a public road. Then they could do checkpoints in grocery stores or malls claiming to look for weapons or drugs without probable cause. Then what, door to door bed checks?