More from Debora Mackenzie
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Poison on your plate
News
Multiplying warheads
News
It can’t go on like this
Books & Arts
Global threat
News
Swallow it whole
Features
Are they aliens or just humble earthlings?
News
Lose them or terrorists could use them
News
Nuclear warning
News
Unleash the bugs of war
News
Alien visitors
News
Bugs of war
News
Running wild
News