How to get ready for the end of the world

Terrorist attacks on transport score 3. The delicately euphemistic “Nuclear miscalculation” beats that with a stronger “impact” score of 4. By contrast, the “Accidental…release of a hazardous pathogen” and “Assassination of a high-profile public figure” feel barely worth bothering with: each scores a paltry 2. Highest-scoring of all is “Pandemic”, with a splendidly robust 5. Admittedly “Civil Nuclear Accident” scores 5 too. But “Pandemic” also threatens “up to 840,000 deaths”. So it wins.