I haven’t given this topic a focused treatment, but I can share some impressions. The effort to portray the attack as deliberate is joined at the hip to the anti-Israel lobby, and the whole business is now irretrievably mired in conspiracy theory. The most scholarly analysis that I know of has come from Jay Cristol. I have a copy of his doctoral thesis on the subject but have merely kicked its tires. It has since been updates and published. Cristol has a web pesence:
http://www.libertyincident.com/author.html
At first glance, it seems the Accident party couches its arguments in terms of investigation, while the Deliberate party couches its arguments in terms of attacking Cristol.