Regarding the recent decision on police roadblocks, I would not normally concur with the opinions of Justices Thurgood Marshall and William Brennan, but in this instance, no interpretation of meaning is required. The Constitution is very clear in the Fourth Amendment: "And no warrants shall issue, but upon probable cause, supported by oath or affirmation, and particularly describing the place to be searched." And the Fifth Amendment says: "Nor shall (one) be compelled in any criminal case to be a witness against himself."
If Breathalyzer testing and video recording of the "victim" is not compelling one to be a witness against oneself (without benefit of attorney), then someone has revised the meanings of the English language without informing anyone outside Washington, D.C.
We wave the flag and shout freedom, but all that issues from Washington is compulsion, extortion, and restriction.