While cross-examining Mrs. Norden, Mason obliquely mentions an operation "several years ago" in the Caribbean in which her husband participated. He apparently was referring to the disastrous Bay of Pigs invasion on the coast of Cuba on April 17, 1961. This botched operation was an enormous embarrassment to the Kennedy Administration and indirectly led to the Cuban Missile Crisis.
This was Peter Whitney's third and final appearance in the series. He and Raymond Burr had starred in the 3D Technicolor movie Gorilla at Large (1954).