I intentionally left assassination out of my McCain/Obama deathwatch entry because it’s hard to tell what the realistic modern-day chances of dying from that are and what the relative risks are for each candidate. Historically, over 55 presidential terms there have been 4 assassinations, so about 7.3 percent of terms end in that. That’s way more than Obama’s chances of dying naturally, so maybe that evens the ratio a bit.
Another way of looking at the presidency: over 276 years of it, there have been four deaths from occupational hazards. For 100 000 workers that works out to ~1450 deaths a year. The US Bureau of Labor Statistics says that lumber cutting is the most hazardous profession in America with 117.8 deaths per 100 000.
