The Conservative Treehouse article regarding DIA buying location info obtained by cell phones without a warrant. I think most of us know this, but a good reminder that anyone can tell where you've been.
At end of article, says CTH is "currently formulating anti-fragile technology platforms that block this intrusive exploitation".

DIA Purchasing Smartphone User Location Data Without Search Warrants - The Last Refuge
The U.S. security apparatus uses private sector data on cell phone users; purchasing as if they were commercial consumers of data; as part of their investigative and monitoring processes for Americans.
The Last Refuge