The Secret by Andrew Child

Well, another story about a hero who puts himself in danger to save America. Jack Reacher is smart, strong, proficient in hand-to-hand combat and also has strong deduction skills and is known as an exceptional investigator. It began with secret government research that happened in India in 1969 that involved a program to make antidotes against chemical and biological weapons. The incident had caused a thousand death toll of innocent people. Of course, the American government could be embarrassed if the revelations were out.

Yet there are numbers of retired scientists who had worked in 1969 had been murdered. To stop the chaos, Reacher digs up another evidence of brewing up the sabotage. It is a standard cliche in the world of one's action-hero figure but a fun read. The Secret is the twenty-eighth book in the Jack Reacher series btw.