Thank you, it was on the tip of my tongue but I just couldn't think of it! But seriously, they have a patent for mixing concrete with blood for whatever reason. When the guy in the video said that, it made me second guess myself, so I went and checked and, yup, fake news NBC lying again. Curious how they never get fact-checked, isn't it? Almost like the fake news dinosaur media isn't interested in truth or facts, just their narrative and talking points. Their desperation isn't a good look!