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Highway Sound Barriers/Holding Pins?
Anyone know what I'm talking about when I say, "highway sound barriers"? Those huge walls lining the highways that are supposed to mute highway noise from residential areas (which don't really work). Well, when I was a teenager, I had this friend of my fathers who said he believed that these would be used as massive holding pins by the government for people to be corralled in. At the time I completely blew him off as a paranoid nut, but in these days and times, I can't say it would suprise me if that is the future purpose for them. Please discuss.....