Nader has famously pronounced that one pound of plutonium released into the environment would end life on earth. (Soviets tried this experiment in 1986 at Chernobyl. If life on earth has ended, hiding this fact is the KGB’s most successful disinformation effort ever.)
Nader's pronouncement was based on research which showed that one pound of plutonium as an aspirate contains two million lethal doses, for humans. The population of the earth at that time was around two billion people, so he borrowed a “b” from the type font and made two million into two billion and with typical left wing solipsism generalized “human life” into “life” and changed “could if applied as an aspirate into the lungs of each individual result in the deaths of most to them” to “would end life”.
It would, of course, be unfair to call Nader an alarmist.
Grossly unfair.
Something similar could probably be said about a load of beach sand turned into powder and delivered into blood streams to cause clots. Sounds like another naderism.
Ingesting alpha emitters is not a good idea. Won't do much harm at a distance, as even a few inches of air will stop the alphas, but inside the body they will do damage. Don't think Dr. Cohen was really serious.