Repeal the law allowing federal or state police to conduct random road blocks to stop citizens without probable cause. This is a direct violation of the 4th Amendment of the US Constitution.
A free and open society that champions individual liberty and personal responsibility — the kind of society we try to tell the world the USA represents, cannot condone the arbitrary stopping, interrogating, intimidation and searching of citizens whose only crime is to be peacefully traveling a public highway.
Roadblocks are being used to circumvent the need for probable cause to stop, interrogate, and search the occupants of motor vehicles.