The first amendment.

"Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people to peaceably assemble, and to petition the government for a redress of grievances."

Those words were written nearly 230 years ago by men with less education than most people in the country today.  It was written by men who did not, generally get much past what we would consider high school. 

And it is the single most powerful amendment in the Bill Of Rights.

The funny thing is, it is our most fundamental right and it is intended to be used as a shield against tyranny from the government.  It is also a a shield that people can hide behind.

The advent of social networking is something that our founding fathers probably never foresaw.  The first amendment, taken at it's word is something that grants anyone the right to say anything about anything but a lot of people don't have a filter.  By that I mean common sense tends to lift the filter and when people get mad about it, people hunker down behind the first amendment for protections.

Case in point, these people:

These people are protected under the first amendment too.  They sued in court and won...all the way up to the Supreme Court, and despite all of the court packing over the years by both conservative and liberal Presidents over the years these whack-jobs still have the rights to protest wherever and whenever they want.

So do these people:

One of the more tense periods during my tenure in law enforcement, (real law enforcement, not that private circle-jerk that I devoted five years of my life to only to be fired by a man now disgraced), was a Klan protest on the plaza in front of the Tulsa County Courthouse.  It was a legal protest, the Klan filed for a permit and was granted one, they had their moment in the hateful sun and they left.  

There was an outcry...some people even petitioned the country commissioners to deny them the permit based on what they represent but they could not based on...you guessed it...first amendment grounds.  So as you can see the amendment both protects people's rights to say whatever they want about whatever they want but it goes both ways.