Just to add to what others have written, every profession has its share of quacks, charlatans, and crackpots, despite the best efforts of professional schools, professional licensing organizations, and professional societies to weed them out. Therefore, the fact that Björkman (note the correct spelling) may have been a qualified marine engineer at some point does not automatically give his pronouncements about the Estonia disaster credibility.
As for the hilited, Björkman actively promotes four main conspiracy theories: nuclear weapons are fake, human space flight is fake, the generally accepted explanation for the sinking of the Estonia is fake, and the generally accepted explanation for the collapse of the World Trade Center buildings is fake. The common thread running through all of these is a mind-boggling misunderstanding of physics (including nuclear physics). Do you believe that a person can perform competently as a marine engineer without understanding physics?
Finally, because I know how much you love being pedantic, Pearl Harbor is a proper noun, so you should use the American spelling.