Analyst's note:  Absolutely must read.  A worthy, comprehensive review on the topic.  As you will see, the foundational U.S. Constitutional  issues go well beyond the 2nd Amendment and gun control.  This should give you enough to peak your interest, but you will want to see the entire original article. 

Preface: While a lot of people talk about the loss of our Constitutional liberties, people usually speak in a vague, generalized manner … or focus on only one issue and ignore the rest.

This post explains the liberties guaranteed in the Bill of Rights – the first 10 amendments to the United States Constitution – and provides a scorecard on the extent of the loss of each right.

[....] the government is arresting those speaking out … and violently crushing peaceful assemblies which attempt to petition the government for redress.

A federal judge found that the law allowing indefinite detention of Americans without due process has a “chilling effect” on free speech. And see this and this.

The threat of being labeled a terrorist for exercising our First Amendment rights certainly violates the First Amendment.   The government is using laws to crush dissent, and it’s gotten so bad that even U.S. Supreme Court justices are saying that we are descending into tyranny.

For example, the following actions may get an American citizen living on U.S. soil labeled as a “suspected terrorist” today:

[....] Fourth Amendment

The 4th Amendment prevents unlawful search and seizure:

The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.

But the government is flying drones over the American homeland to spy on us.

Senator Rand Paul correctly notes:

The domestic use of drones to spy on Americans clearly violates the Fourth Amendment and limits our rights to personal privacy.

Paul introduced a bill to “protect individual privacy against unwarranted governmental intrusion through the use of unmanned aerial vehicles commonly called drones.”

Emptywheel notes in a post entitled “The OTHER Assault on the Fourth Amendment in the NDAA? Drones at Your Airport?”:

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As the map above makes clear–taken from this 2010 report–DOD [the Department of Defense] plans to have drones all over the country by 2015. [....]

 Video was Published on Dec 2, 2012

RT talks to William Binney, whistleblower and former NSA crypto-mathematician who served in the agency for decades. Virtual privacy in US, Petraeus affair and whistleblowers' odds in fight against the authorities are among key topics of this exclusive interview

[....] Indeed, the federal government is doing everything it can to stick its nose into every aspect of our lives … and act like Big Brother. 

Conclusion: While a few of the liberties enshrined in the Bill of Rights still exist, the overall scorecard of the government’s respect for our freedom: a failing grade.