Or for a more mundane example, I tried to identify a particular plant by doing an image based I'd with Google.
It was identified as a Broomrape because the pictures only had non-green portions of the plant in question. It was ACTUALLY a member of the thistle family.
See https://youtu.be/R_rF4kcqLkI?t=2m51s
In medicine, I want everyone to apply appropriate skepticism to important results, and I don't want to enable lazy radiologists to zone out and press 'Y' all day. I want all the doctors to be maximally mentally engaged. Skepticism of an incorrect radiologist report recently saved my dad from some dangerous, and in his case unnecessary, treatment.