Book of Mormon NSA Warning

Robert Lockard at the Huffington Post talks about a possible warning and parallel in the Book of Mormon against NSA surveillance. Lockard talks about the tall tower built by King Noah to see the Lamanites afar off. However, it seems apparent that the tower served another purpose and may have been use to spy on the true believers of God.  After King Noah discovered Alma and his followers were congregating at the waters of Mormon, he sent his armies to destroy them telling the Armies that the people were organizing in rebellion against him.  Luckily we have freedom of speech, religion, and assembly in America?

12 And it came to pass that he built a tower near the temple; yea, a very high tower, even so high that he could stand upon the top thereof and overlook the land of Shilom, and also the land of Shemlon, which was possessed by the Lamanites; and he could even look over all the land round about. (Book of Mormon, Mosiah, Mosiah 11)

32 But behold, it came to pass that the king, having discovered a movement among the people, sent his servants to watch them. Therefore on the day that they were assembling themselves together to hear the word of the Lord they were discovered unto the king. 

33 And now the king said that Alma was stirring up the people to rebellion against him; therefore he sent his army to destroy them. (Book of Mormon, Mosiah, Mosiah 18)