For those listening to the audio podcast, here are the photo examples from the YouTube video version of the show:
Einstein sticks his tongue out (Aurther Sasse, March 14th, 1941)
Uncropped version of the same photo, seated next to Dr. Frank Aydelotte
The Vulture and the Little Girl (Kevin Carter, March 1993)
Marilyn Monroe’s Flying Skirt (Sam Shaw, September 1954)
Alternate angle, taken at the same time
Thousands arrive to get a glimpse up Marilyn’s skirt (Sam Shaw, September 1954)
Several photos depicting The Dust Bowl, considered the largest ecological disaster in U.S. history (US/Canadian Praries, 1930s)
Migrant Mother (Dorthea Lange, March 1936)