It is a test to see what rights we are willing to give up.

Bill Of Rights, the very first one;

Amendment I 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 peaceably to assemble, and to petition the government for a redress of grievances.

Once they get away with taking that one, the others are already gone.