The U.S. Supreme Court is so ideologically split that a unanimous decision is a jaw dropper. United States vs. Jones is about whether police have a right to attach a GPS device to your car, leave it there for weeks or months, thereby getting a record of your every move. The unanimous decision? They cannot.
It got to the Court after FBI agents attached one to a car parked on private property, then used it to track its position every ten seconds for a month.
Ron Paul would agree, although maybe Mitt Romney, who plays his IRS returns as close to the vest as poker hands, would not, or would police, FBI, CIA, and all with prosecutorial mentalities.
We all want protection from crazies with bombs so what would you expect police to do if they spot a suspicious bomb-sized package carried by a skulking individual with a suspicious look? But they can still mark him for observation with a GPS. All they need is is an order from a judge. Good decision.