USS Liberty requires caution about incomplete evidence

What is the best explanation for the attack on USS Liberty?

Mistaken identification under threat expectations is the favored explanation here, although the surviving evidence is insufficient for certainty.

Incomplete records prevent an absolute conclusion about the attack. Mistaken identification by forces moving quickly and expecting threats in the area is the favored explanation here. Under those conditions, ambiguous information can be forced into an attacker's existing picture of the battlefield. A firmer judgment would require more evidence from both sides than is available.