alt Hacker NewsThe thing is DNA just also isn't dangerous. It's fragile and everything in the environment destroys it - as noted it's literally a everything else which is the hard part.
This reeks of the Longtermists getting their influence into government. They were doing an entire round on YouTube about a year ago.
DNA is pretty robust. You can send a dried spot of it on a piece of filter paper and send it in the mail.