http://www.dailytech.com/Supreme+Court+Sorry+Obama+Police+Cannot+Invade+Property+Track+Without+Warrant/article23851.htmhttp://arstechnica.com/tech-policy/news ... tional.ars
The decision puts a firm end to the federal government's growing efforts to expand warrantless searches:
Under the new laws the government cannot:
1. Enter your property without warrant.
2. Plant a GPS tracker on your "effects" (car, bags, etc.) without warrant.
3. Use evidence collected by above warrantless tracking in court.
The government can:
1. Enter unfenced open fields without warrant and search them (though it presumably cannot search vehicles "effects" in them).
There is still some sanity left in the USA after all.
Thank you for the follow up on this.
They just gave warrantless tapping and tracking powers to the Telecoms so the GPS tracker on your car is not that important since everyone carries a cell phone on them now.