Similar incidents have occurred before. Eyewitnesses to other crimes have identified the wrong person in a police lineup or in photographs. Many factors influence the accuracy of eyewitness testimony.
Following the two testimonies yesterday, it was once again in the hands of the Senate Judiciary Committee to determine whether to recommend confirming Judge Kavanaugh to the Supreme Court.
Satellite evidence from two US thinktanks and testimony from the South Korean intelligence services all suggest North Korea has started rebuilding a site they had agreed to destroy.