Shorten the odds

Murphy had studied the facts carefully and had come up with the following conclusions.

The odds against being on a plane which had a bomb on board were 10,000 to 1.

However, the odds against being on a plane which had two bombs on board were 10,000,000 to 1.

'That settles it,' he said. 'From now on, every time I fly I'm taking a bomb with me!'