One common experiment is showing a short film with a car accident in a psych class and then quizzing the class afterward about the accident...even the most basic details are routinely botched, things that didn't occur are invented, etc. by completely sane and intelligent people.
The ONLY way eyewitness testimony is useful is through very careful, standardized interviews of a lot of people and then comparing the data.
BTW..as an aside..where the heck are people getting the idea that the Concorde crash is some sort of inexplicable mystery?
The mystery would be why the Concorde was "returning to JFK" all the way from Paris. Ignore him.