This week, the Supreme Court handed down their decision in Arizona v. Johnson [pdf]. This case expands on the powers of police to detain and search citizens given only the vague qualifier of “reasonable suspicion.”
Granted, the courts have upheld the idea that our rights to privacy are significantly reduced when in an automobile, but this case expands the rights of arbitrary search and seizure of uninvolved passengers somewhat.
At this point, an officer can order me out of my car and search me on nothing more than a hunch.