But occasionally I would still feel uneasy at work, afraid of being the cause of another catastrophe.
Still, Putin's spokesman insisted that the cancellation of Egypt flights did "not mean that a terrorist attack is the main suspected cause of the catastrophe".
But last week, as evidence to the contrary accumulated, President Vladimir V. Putin of Russia said publicly that Ukraine's proof was "insufficient," and Israel accused Kiev of being uncooperative in getting to the cause of the catastrophe.
A spokesman, Dmitry Peskov, said: "The decision of the president to suspend flights to Egypt does not mean that a terrorist attack is the main suspected cause of the catastrophe with [the airline] Kogalymavia".
In 1959, a physician identified the cause of the catastrophe: A local chemical plant had been dumping methylmercury into the bay, poisoning the fish and, ultimately, the humans and cats who ate them.
He interviewed plenty of people in both places, and in neither case – Republican Texas or Democratic New Jersey – could he find anyone who could recall a conversation about climate change as a potential cause of the catastrophe they had suffered.
But, as Alec Luhn reports from Moscow, they are also keen to point out that the decision to suspend flights to Egypt "does not mean that a terrorist attack is the main suspected cause of the catastrophe".
The real cause of the catastrophe is plain in a document from Ethiopia's council of ministers that read: "The people are like the sea and the guerrillas are like fish swimming in that sea.
In 1990, an inquiry chaired by Lord Justice Taylor ruled the prime cause of the catastrophe was mismanagement by South Yorkshire Police, who allowed overcrowding on the terraces at Sheffield Wednesday's Hillsborough ground.
