Tt post oct 22, 2015 b

quote=196254

At a so-called "sobriety checkpoint," motorists are stopped, questioned, and maybe searched for no reason, except for the fact that people with guns have established a blockade of sorts.

Wikipedia : Fourth Amendment to the United States Constitution

... prohibits unreasonable searches and seizures ...

Who gets to define "unreasonable"?

But wait, there's more from that page with my edits added:

Where society's need is great, [f*ck that] no other effective means of meeting the need is available, and intrusion on people's privacy is minimal, [f*ck that too] certain discretionless checkpoints toward that end may briefly detain motorists.

In United States v. Martinez-Fuerte (1976), the Supreme Court allowed discretionless immigration checkpoints.

In Michigan Dept. of State Police v. Sitz (1990), the Supreme Court allowed discretionless sobriety checkpoints.

Unreasonable.
Minimal.
Discretionless.

It depends upon who gets to write the dictionary.