Smallpox decimated much of the native American population when it came over with the Europeans, more than 400 years ago. (One reason, by the way, the buffalo population exploded in the West, leading subsequent settlers to think the animal could be killed with abandon).

FORBES: Fact and Comment

King refused to be provoked in a cagey third round before the fight exploded into life in the next, with McAllister rocking the 26-year-old back more than once.

BBC: McAllister power ends King hopes

Saudi officials believe that the prince's assailant exploded the 100-gram device using a detonator with a chemical fuse, which would also not be detected by a metal detector.

CNN: Analysis: Similar explosive on plane used in Saudi attack