Besides, Dr. Winston says a countermeasure is easily arranged, to be used when we suspect the mind readers might make another try.
"The Electronic Mind Reader"
John Blaine
It was a possible countermeasure that caused him to sweat with worry.
"Operation Terror"
William Fitzgerald Jenkins
This was the first countermeasure attempted since the Grass crossed the Mississippi, and in reaction to its collapse, the return of Brother Paul's expedition passed almost unnoticed.
"Greener Than You Think"
Ward Moore