True, caution is warranted. But I think you missed a key point in the article. Unlike antibiotics, these polymers disintegrate. The article isn't clear on the

True, caution is warranted. But I think you missed a key point in the article. Unlike antibiotics, these polymers disintegrate. The article isn't clear on the mechanism–is it part of destroying a bacterium, decay over time or what?-but the implication is that they can be targeted to kill specific bacteria, without then escaping in to the wild to apply selection pressure on bacteria that aren't threatening somebody's life. It's not like these researchers are unaware of drug-resistant bacteria. The whole point of the statement you quote is that adding them to cleaning agents won't breed resistant bacteria. They may be wrong, but they're not stupid.