He was killed by a rare and lethally radioactive substance.
The explosions could lethally contaminate nearby rivers.
The Japanese pufferfish, a delicacy in Japan, can be lethally poisonous if not prepared correctly.
The dog had to be lethally injected after attacking three children.
A man falls asleep while driving his car which dashes him lethally against a tree.
It is more interdependent, more populous, more complex, more lethally armed, more environmentally vulnerable and more sharply divided between rich and poor.
It is also possible to produce new bacteriological organisms which could be lethally effective beyond anything at present known.
