You've got a lot to learn if you think we live in a "free society". According to the ACLU:
With only 5% of the world’s population, the U.S. has 25% of the world’s prison population – that makes us the world’s largest jailer. (Even though crime is at an all time low)
From 1978 to 2014, our prison population has risen over 400%.
One in 110 adults are incarcerated in a prison or local jails in the U.S. This marks the highest rate of imprisonment in American history.
One in 35 adults are under some form of correctional control, counting prison, jail, parole and probation populations.
In America, our criminal justice system should keep communities safe and treat people fairly, regardless of the color of their skin or the size of their bank account in order for our system to do a good job, it must be cost-effective by using our taxpayer dollars and public resources wisely, in an evidence-based rather than fear-based manner.
But our criminal justice system is not doing a good job. It has failed on every count: public safety, fairness and cost-effectiveness. Once the prison system was privatized, it's been turned into big business with the goal of prosecuting and keeping people in prison for minor offenses.
Even before 9/11, but moreso after, laws have been passed (without the approval of congress) that can keep and detain anyone indefinitely, all in the name of national security, and if you actually look into your so called "freedoms", you'd see we don't really have many left.
Corrections Corporation of America has seen it's profits rise over 500% over the past 2 decades. Keeping Americans incarcerated is big business, and it's only going to get worse.
Privacy concerns are but a small piece of the puzzle that is wrong with this country. Stop believing everything you hear on the news and start doing your own research.