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I haven't seen either of those, but they're both really impressive. Now that we're pretty well able to splice genes into genomes, regulation of those spliced genes is becoming more and more important. There was a recent article I read about using XNA based genes in GMO plants so that in the absence of human-supplied nucleotides particular genes can't be reproduced, this brings to mind various methods of controlling not just the reproduction/lateral gene transfer, but the expression of the genes when it's most beneficial to the plants (or in particular tissues that need it the most and that we don't end up consuming).