“It is difficult to get a man to understand something, when his salary depends
upon his not understanding it!”

Upton Sinclair, 1878-1968

This was true in 1935, when published in “I, Candidate for Governor: and how I got Licked.”

…is it any less true today?
Take a look at this example:
…the concealed operational error at
Camarillo, CA on July 25, 2010,