Outer Space Solution
Outer space provides two solutions:
The second solution is the better one, because surely there will be commercial and military entities who will take secret and cheap risks within our biosphere. Only human colonies in space can assure our survival.
It's possible that some kinds of laboratory experiments in space could leak a lethal product which could survive transit thru space to Earth and down into the biosphere. In these cases, the laboratory should be equipped with a self destructive mechanism based on extreme temperature, whether it be a chemical heater, solar heater, or small nuclear device.
Human colonization is covered on www.permanent.com where PERMANENT is an acronym for Projects to Employ Resources of the Moon and Asteroids Near Earth in the Near Term.
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