Yes, but even if you get to the point of being able to reliably manufacture large amounts of nanotubes, there will almost always be defects in mass-produced products. And if just a few atoms out of place is enough to significantly reduce the tensile strength, I don't know if we'll ever be able to reliably use them.

I don't know if they blamed 'political correctness' per say, even though that was a quote linked in the article. I think the last part was the most relevant to what's going on right now: "Radical Islamic terrorists are not deterred by gun control laws".

Because even if the rifles like the one used in the shooting are banned, criminals will find a way to get their hands on them, gun control laws or not.