Both crashes killed everyone on board, 346 people in all, and both crashes have been linked to a flawed computer system that repeatedly pushed the plane's noses down despite the pilots efforts to correct it.
They compared Dreyfus's handwriting to that on the memo and concluded that it was a match, even though outside professional handwriting experts were much less confident in the similarity, but never mind that.
No matter how horrible in seeming may be the conditions in certain countries, sections, or places, you waste your time and destroy your own chances by considering them.
Sonja had of course also read the article and she had certain objections to Ove's exact version of events regarding the company's nationality, but it made no difference.